WO2014087972A1 - 還元型補酵素q10誘導体およびその製造方法 - Google Patents
還元型補酵素q10誘導体およびその製造方法 Download PDFInfo
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- WO2014087972A1 WO2014087972A1 PCT/JP2013/082375 JP2013082375W WO2014087972A1 WO 2014087972 A1 WO2014087972 A1 WO 2014087972A1 JP 2013082375 W JP2013082375 W JP 2013082375W WO 2014087972 A1 WO2014087972 A1 WO 2014087972A1
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- WIPO (PCT)
- Prior art keywords
- group
- reduced coenzyme
- carbon atoms
- derivative
- oil
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Classifications
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C68/00—Preparation of esters of carbonic or haloformic acids
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C68/00—Preparation of esters of carbonic or haloformic acids
- C07C68/08—Purification; Separation; Stabilisation
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/08—Systems containing only non-condensed rings with a five-membered ring the ring being saturated
Definitions
- the present invention is stable to molecular oxygen, which can be used for foods and drinks such as health foods and health functional foods (specific health foods, nutritional functional foods), pharmaceuticals, quasi drugs, cosmetics, and the like.
- the present invention relates to a novel reduced coenzyme Q 10 derivative excellent in oral absorbability and a method for producing the same.
- Reduced coenzyme Q 10 not only exhibits high oral absorbability compared to oxidized coenzyme Q 10 , but is also a very useful compound as an antioxidant, for example, synthesis, fermentation, extraction from natural products it can be obtained by reducing oxidized coenzyme Q 10 obtained by a conventionally known method such as.
- reduced coenzyme Q 10 by molecular oxygen easily oxidized to oxidized coenzyme Q 10, reduced coenzyme Q 10, food, food with nutrient function claims, food for specified health use, nutritional supplement, nutrient,
- materials and compositions such as animal drugs, beverages, feeds, cosmetics, pharmaceuticals, therapeutic drugs, preventive drugs, and / or when storing after processing, the reduced coenzyme Q 10 can be stably maintained. It remains an important issue.
- Patent Document 1 a method for improving oxidation stability by protecting the hydroxyl group of reduced coenzyme Q 10 with an acyl group or an ether group is known (Patent Document 1).
- the present invention has high oxidation stability and excellent oral absorption, food, health food, functional nutrition food, food for specified health use, supplement, nutritional supplement, nutritional supplement, animal medicine, beverage, feed
- An object of the present invention is to provide a novel reduced coenzyme Q 10 derivative that can be easily applied to pet food, cosmetics, pharmaceuticals, therapeutic agents, preventive agents, and the like.
- the present inventors have surprisingly found that the reduced coenzyme Q 10 derivative into which a specific alkoxycarbonyl group has been introduced is not only stable against oxidation, but also by the introduction of the substituent. It was found that the oral absorbability was excellent despite the decrease in water solubility, and the present invention was completed.
- the present invention relates to a novel reduced coenzyme Q 10 derivative represented by the following formula (1).
- R 1 and R 2 are each independently H or the following formula (2):
- R 3 is an optionally substituted linear, branched or cyclic alkyl group having 1 to 20 carbon atoms, an optionally substituted aryl group having 6 to 20 carbon atoms, or 4 carbon atoms. ⁇ 20 optionally substituted heteroaryl groups.
- R 3 is a group substituted with polyethylene glycol, the molecular weight of polyethylene glycol is 300 or less.
- the present invention also relates to a crystal of a novel reduced coenzyme Q 10 derivative represented by the above formula (1).
- the present invention is producing reduced coenzyme Q 10, the presence of a base, characterized in that is reacted with alkoxycarbonyl agent, the reduced coenzyme Q 10 derivative represented by the above formula (1) Also related to the method.
- the reduced coenzyme Q 10 derivative of the present invention has the following formula (1):
- R 1 and R 2 of the compound (1) are each independently H or the following formula (2):
- R 1 and R 2 are alkoxycarbonyl groups represented by the above formula (2).
- R 3 A) a linear, branched or cyclic alkyl group having 1 to 20 carbon atoms which may be substituted, B) an aryl group having 6 to 20 carbon atoms which may be substituted, or C) a carbon number 4 to 20 optionally substituted heteroaryl groups.
- R 3 is a substituted group and the substituent is polyethylene glycol, the molecular weight of the polyethylene glycol is limited to 300 or less.
- alkyl group examples include, for example, a halogen group (preferably chloro group, bromo group, especially chloro group), nitro group, nitrile group, alkoxy group (preferably methoxy group). C 1-4 alkoxy group such as ethoxy group), alkenyl group (preferably vinyl group, propenyl group etc.), alkynyl group, aryl group (phenyl group, naphthyl group etc.) and the like.
- the linear, branched or cyclic alkyl group having 1 to 20 carbon atoms which may be substituted is not particularly limited, and examples thereof include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, and a cyclopropyl group.
- N-butyl group isobutyl group, s-butyl group, t-butyl group, cyclobutyl group, n-pentyl group, s-pentyl group, neopentyl group, 2-methylbutyl group, 3-methylbutyl group, cyclopentyl group, n- Hexyl group, 2-methylpentyl group, 2,2-dimethylbutyl group, 2,3-dimethylbutyl group, methylcyclopentyl group, cyclohexyl group, n-heptyl group, 2-methylhexyl group, 3-methylhexyl group, 2 3-dimethylpentyl group, 2,4-dimethylpentyl group, methylcyclohexyl group, n-octyl group, 2,2,3-tri Tylpentyl group, isooctyl group, ethylcyclohexyl group, n-nonyl group,
- the carbon number of the alkyl group is preferably 1 to 15, more preferably 2 to 10, and particularly preferably 3 to 8.
- the alkyl group is preferably branched or cyclic. It is preferable that a substituent is not bonded to the alkyl group.
- Aryl group preferably Aryl group, C) Heteroaryl group
- Substituents that may be bonded to the aryl group or heteroaryl group include, for example, halogen groups (preferably chloro groups, bromo groups, especially chloro groups), nitro groups, A nitrile group, an alkoxy group (preferably a C 1-4 alkoxy group such as a methoxy group or an ethoxy group), an alkyl group (preferably a C 1-4 alkyl group such as a methyl group or an ethyl group) and the like are included.
- the aryl group having 6 to 20 carbon atoms which may be substituted is not particularly limited, and examples thereof include a phenyl group, a 4-methylphenyl group, a 4-methoxyphenyl group, a 4-nitrophenyl group, and a 4-chlorophenyl group. Etc. can be exemplified.
- the optionally substituted heteroaryl group having 4 to 20 carbon atoms is not particularly limited, and examples thereof include a 2-furanyl group, 2-thiophenyl group, 2-pyridyl group, 4-methyl-2-pyridyl group. Examples include groups.
- a preferred aryl group is an optionally substituted phenyl group.
- R 3 is preferably a linear, branched or cyclic alkyl group having 1 to 6 carbon atoms or an optionally substituted aryl group having 6 to 10 carbon atoms among the above substituents.
- An isobutyl group, a cyclopentyl group or a phenyl group is particularly preferable in terms of having.
- R 1 and R 2 of the compound (1) may be either alkoxycarbonyl groups represented by the formula (2), both of which are alkoxy groups represented by the formula (2). It may be a carbonyl group.
- the alkoxycarbonyl groups may be different or the same, but are preferably the same in terms of easy production.
- the reduced coenzyme Q 10 derivative of the present invention has excellent oral absorption even though the hydroxyl group, which is a hydrophilic substituent, is substituted with a hydrophobic alkoxycarbonyl group, resulting in decreased water solubility. Showing gender.
- the carbonated reduced coenzyme Q 10 derivative of the present invention such as a bisisobutyl carbonate derivative has higher oral absorbability than reduced coenzyme Q 10 .
- Reduced coenzyme reduced coenzyme Q 10 derivative of the present invention the water-soluble than the enzyme Q 10 has a high oral absorbability despite reduced (carbonate) is not novel only, specific It can be said that it is a compound.
- the reduced coenzyme Q 10 derivative of the present invention has high fat solubility, it can be dissolved in a vegetable oil or the like at a high concentration, so that it can be suitably used for a soft capsule having a high content.
- the reduced coenzyme Q 10 derivative of the present invention can also be obtained in a crystalline form. Therefore, a crystal of a reduced coenzyme Q 10 derivative represented by the above formula (1) is another aspect of the present invention.
- R 3 is preferably a linear, branched or cyclic alkyl group having 2 to 6 carbon atoms or an aryl group having 6 to 10 carbon atoms, R 3 is more preferably an ethyl group, an isopropyl group, an isobutyl group, a cyclopentyl group or a phenyl group, and an isobutyl group, a cyclopentyl group or a phenyl group is particularly preferable.
- R 1 and R 2 may be the same or different, but are preferably the same.
- the main peak here is a peak having a relative intensity of about 20 or more when the maximum peak intensity is 100 among the peaks of the obtained powder X-ray diffraction pattern.
- the value of the diffraction angle 2 ⁇ is not limited only to the value indicated as having the peak and the range based thereon,
- the range in which errors can occur can be included as the diffraction angle 2 ⁇ value in the crystal of the present invention.
- the range in which such an error occurs can be easily predicted by those skilled in the art based on the measurement conditions.
- the error range is ⁇ 0.2 °, preferably ⁇ 0.1 °.
- the reduced coenzyme Q 10 derivative of the present invention that can be obtained in the crystalline form can be suitably used for powders, tablets and the like mainly for oral use.
- the production method of the present invention a method for producing the reduced coenzyme Q 10 derivative of the present invention (hereinafter referred to as “the production method of the present invention”) will be described.
- the method for producing the novel reduced coenzyme Q 10 derivative of the present invention is not particularly limited.
- the reduced coenzyme Q 10 used as a raw material may be reduced coenzyme Q 10 alone or a mixture with oxidized coenzyme Q 10 .
- the reduced coenzyme Q 10 is a mixture of oxidized coenzyme Q 10, reduced relative to the total amount of coenzyme Q 10 (i.e., the total amount of reduced coenzyme Q 10 and oxidized coenzyme Q 10)
- the ratio of the type coenzyme Q 10 is not particularly limited, but for example, 1% by weight or more, usually 5% by weight or more, preferably 10% by weight or more, more preferably 20% by weight or more, further preferably 50% by weight or more, Especially preferably, it is 60 weight% or more, Most preferably, it is 80 weight% or more.
- the upper limit is not particularly limited, but when a mixture of oxidized coenzyme Q 10 is used as reduced coenzyme Q 10 , it is usually 99.9% by weight or less. Of course, if reduced coenzyme Q 10 is 100 wt%, i.e. it may be used reduced coenzyme Q 10 alone.
- the reduced coenzyme Q 10 used here is obtained by reducing oxidized coenzyme Q 10 obtained by a conventionally known method such as synthesis, fermentation, extraction from a natural product or the like by a known method. Can do.
- the fermentation is reduced coenzyme Q 10 obtained from oxidized coenzyme Q 10 obtained by extraction from natural products.
- the reduced coenzyme Q 10 used here a commercially available product may be used as it is, or a product obtained by reducing oxidized coenzyme Q 10 by a known method may be used after isolation and purification.
- the reaction solution after the reduction reaction can be used as a raw material for the production method of the present invention without being isolated after being subjected to treatments such as washing and concentration as necessary.
- oxidized coenzyme Q 10 can be derived into compound (1) in one pot by reacting with an alkoxycarbonylating agent after reduction or simultaneously with reduction by a known method.
- the alkoxycarbonylating agent used in the reaction is not particularly limited, but the following formula (4):
- R 3 is a linear, branched or cyclic alkyl group having 1 to 20 carbon atoms which may be substituted, an aryl group having 6 to 20 carbon atoms which may be substituted, or a carbon number. 4 to 20 optionally substituted heteroaryl groups, provided that when R 3 is a group substituted with polyethylene glycol, the molecular weight of polyethylene glycol is 300 or less) Or a halogenated carbonate represented by the following formula (5):
- R 3 is an optionally substituted linear, branched or cyclic alkyl group having 1 to 20 carbon atoms, an optionally substituted aryl group having 6 to 20 carbon atoms, or a substituted group having 4 to 20 carbon atoms.
- R 3 is a group substituted with polyethylene glycol, the molecular weight of polyethylene glycol is 300 or less.
- the amount of the alkoxycarbonylating agent used at the time of the reaction usually needs to be 1.0 times the molar amount or more with respect to the compound (3), and the upper limit is not particularly limited, but is economical. From 20 times the molar amount is sufficient. The molar amount is preferably 1.2 to 15 times.
- the solvent used in the reaction is not particularly limited, but amines, nitriles, amides, hydrocarbons, esters (including fatty acid esters), ethers, ketones, sulfur A compound etc. can be used and these may be used independently or may be used as a 2 or more types of mixed solvent.
- the amines may be cyclic or non-cyclic, and may be saturated or unsaturated, and are not particularly limited, but include pyridine, lutidine, N, N-dimethylaniline, triethylamine, diisopropylethylamine, dicyclohexylamine, 1, Examples thereof include 8-diazabicyclo [5.4.0] undec-7-ene (DBU) and morpholine. Pyridine is preferable.
- the nitriles are not particularly limited regardless of whether they are cyclic or non-cyclic, and whether saturated or unsaturated, but saturated ones are generally preferably used. Usually, those having 2 to 20 carbon atoms, particularly 2 to 12 carbon atoms, especially 2 to 8 carbon atoms are preferably used.
- acetonitrile for example, acetonitrile, propionitrile, malononitrile, butyronitrile, isobutyronitrile, succinonitrile, valeronitrile, glutaronitrile, hexanenitrile, heptyl cyanide, octyl cyanide, undecane nitrile, dodecane nitrile, tridecane Nitrile, pentadecane nitrile, stearonitrile, chloroacetonitrile, bromoacetonitrile, chloropropionitrile, bromopropionitrile, methoxyacetonitrile, methyl cyanoacetate, ethyl cyanoacetate, tolunitrile, benzonitrile, chlorobenzonitrile, bromobenzonitrile, nitro Benzonitrile, anisonitrile, phthalonitrile, bromotolunitrile, methyl cyanobenzoate, methoxybenzon
- amides examples include N, N-dimethylformamide, N, N-dimethylacetamide, and N-methylpyrrolidone.
- the hydrocarbons are not particularly limited, and examples thereof include aliphatic hydrocarbons, aromatic hydrocarbons, and halogenated hydrocarbons.
- aliphatic hydrocarbons and aromatic hydrocarbons are preferable, and aliphatic hydrocarbons are particularly preferable.
- the aliphatic hydrocarbons are not particularly limited regardless of whether they are cyclic or acyclic, saturated or unsaturated, and acyclic aliphatic hydrocarbons are particularly preferably used. Usually, those having 5 to 20 carbon atoms, preferably 5 to 12 carbon atoms are used.
- Specific examples include, for example, pentane, 2-methylbutane, cyclopentane, 2-pentene, hexane, 2-methylpentane, 2,2-dimethylbutane, 2,3-dimethylbutane, methylcyclopentane, cyclohexane, 1-hexene.
- saturated aliphatic hydrocarbons having 5 to 8 carbon atoms are preferable, such as pentane, 2-methylbutane, cyclopentane, hexane, 2-methylpentane, 2,2-dimethylbutane, 2,3-dimethylbutane, and methylcyclopentane.
- the aromatic hydrocarbons are not particularly limited, but usually, those having 6 to 20 carbon atoms, particularly 6 to 12 carbon atoms, especially 7 to 10 carbon atoms are preferably used.
- Specific examples include, for example, benzene, toluene, xylene, o-xylene, m-xylene, p-xylene, ethylbenzene, cumene, mesitylene, tetralin, butylbenzene, p-cymene, cyclohexylbenzene, diethylbenzene, pentylbenzene, dipentylbenzene. , Dodecylbenzene, styrene and the like.
- the halogenated hydrocarbons are not particularly limited, regardless of whether they are cyclic or non-cyclic, and saturated or unsaturated. In general, non-cyclic hydrocarbons are preferably used. Usually, chlorinated hydrocarbons and fluorinated hydrocarbons are preferable, and chlorinated hydrocarbons are particularly preferable. Those having 1 to 6 carbon atoms, particularly 1 to 4 carbon atoms, especially 1 to 2 carbon atoms are preferably used.
- Specific examples include, for example, dichloromethane, chloroform, carbon tetrachloride, 1,1-dichloroethane, 1,2-dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloroethane, 1,1,1,2, and the like.
- dichloromethane chloroform, carbon tetrachloride, 1,1-dichloroethane, 1,2-dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloroethane, 1,1-dichloroethylene, 1,2-dichloroethylene , Trichloroethylene, chlorobenzene, 1,1,1,2-tetrafluoroethane, more preferably dichloromethane, chloroform, 1,2-dichloroethylene, trichloroethylene, chlorobenzene, 1,1,1,2-tetrafluoroethane .
- the esters are not particularly limited, and examples include propionic acid esters, acetic acid esters, formic acid esters, and the like.
- acetate ester and formate ester are preferable, and acetate ester is particularly preferable.
- an alkyl ester or aralkyl ester having 1 to 8 carbon atoms preferably an alkyl ester having 1 to 6 carbon atoms, more preferably an alkyl ester having 1 to 4 carbon atoms is preferably used.
- the propionate ester include methyl propionate, ethyl propionate, butyl propionate, isopentyl propionate, and the like.
- acetate esters examples include methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate, sec-butyl acetate, pentyl acetate, isopentyl acetate, sec-hexyl acetate, cyclohexyl acetate, and benzyl acetate. Can do.
- formate ester examples include methyl formate, ethyl formate, propyl formate, isopropyl formate, butyl formate, isobutyl formate, sec-butyl formate, and pentyl formate.
- Preferred are methyl formate, ethyl formate, propyl formate, butyl formate, isobutyl formate, pentyl formate, and the like, and most preferred is ethyl formate.
- the ethers are not particularly limited regardless of whether they are cyclic or non-cyclic, and whether saturated or unsaturated. In general, saturated ones are preferably used. Usually, those having 3 to 20 carbon atoms, particularly 4 to 12 carbon atoms, especially 4 to 8 carbon atoms are preferably used.
- Examples include, for example, diethyl ether, methyl tert-butyl ether, methyl n-butyl ether, dipropyl ether, diisopropyl ether, dibutyl ether, dihexyl ether, ethyl vinyl ether, butyl vinyl ether, anisole, phenetole, butyl phenyl ether, methoxytoluene, Examples include dioxane, furan, 2-methylfuran, tetrahydrofuran, tetrahydropyran, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, and ethylene glycol dibutyl ether.
- the ketones are not particularly limited, and those having 3 to 6 carbon atoms are preferably used. Specific examples include acetone, methyl ethyl ketone, methyl butyl ketone, methyl isobutyl ketone, and the like, preferably acetone and methyl ethyl ketone, and most preferably acetone.
- sulfur compounds include dimethyl sulfoxide and sulfolane.
- the amount of the solvent used during the reaction is usually in the range of 1 to 100 times the volume of the compound (3). Preferably it is the range of 2 times capacity or more and 50 times capacity or less.
- the 1 time volume with respect to 1 kg of compound (3) is 1L.
- a base is used during the reaction.
- the base used in the production method of the present invention is not particularly limited, but in general, a base used in a reaction for forming an ester with an alcohol and an acylating agent can be used, for example, organic amines, Alkali metal alkoxides and alkali metal hydrides can be preferably used.
- the organic amines include pyridine, lutidine, N, N-dimethylaniline, triethylamine, diisopropylethylamine, dicyclohexylamine, 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU).
- examples of the alkali metal alkoxide include potassium tert-butoxide and sodium tert-butoxide
- examples of the alkali metal hydride include sodium hydride and potassium hydride.
- the amount of these bases used is required to be 1.0 times the molar amount or more with respect to the compound (3), and usually 20 times the molar amount or less is used. The molar amount is preferably 1.2 to 15 times. However, in the case of organic amines, it can also be used as a solvent. When the organic amine is used as a base and a solvent, the amount used is usually in the range of 1 to 100 times the volume of the compound (3). Preferably it is the range of 2 times capacity or more and 50 times capacity or less.
- the synthesis reaction of compound (1) is usually carried out at a temperature not lower than ⁇ 50 ° C. and not higher than the boiling point of the solvent used.
- the reaction time is usually 1 to 100 hours, but for the above reasons, 2 to 50 hours is preferable.
- the reaction time can be adjusted by confirming the change of the reaction over time by analytical means such as thin layer chromatography (TLC) and high performance liquid chromatography (HPLC).
- a known post-treatment method often used in an organic reaction is used from the mixture after the reaction, for example, operations such as pH adjustment, extraction, liquid separation, washing, concentration, and purification.
- the compound (1) can be isolated.
- the compound (1) can be produced without using the reduced coenzyme Q 10 of the formula (3) as a raw material, regardless of the production method of the present invention.
- the method is not particularly limited. For example, after introducing the alkoxycarbonyl group represented by the formula (2) into the hydroquinone skeleton, JP-A-48-85546 or JP-B-62-31700 is disclosed. The method of synthesizing an isoprenoid chain in accordance with the method described in 1), the method of utilizing the transition from the p-position to the m-position as described in JP-A-56-123927, and the like.
- the crystalline form of the compound (1) can be obtained, for example, by treating the compound (1) in a suitable organic solvent.
- the form of the compound (1) used in the crystallization step is not particularly limited, and may be in a liquid form such as a melt or a solution or a solid form.
- the compound (1) in these forms can be crystallized by, for example, dissolving the compound (1) in an organic solvent as necessary, cooling, concentrating, and adding a poor solvent. .
- the compound (1) may be heated up to the boiling point of the organic solvent used.
- the organic solvent used in the crystallization step includes nitriles, alcohols, aliphatic hydrocarbons, aromatic hydrocarbons, halogenated hydrocarbons, ethers, esters and the like. They can be used alone or in combination or combination.
- specific examples of these nitriles, alcohols, aliphatic hydrocarbons, aromatic hydrocarbons, halogenated hydrocarbons, ethers, esters and the like are those exemplified as solvents that can be used in the above reaction. The same.
- nitriles such as acetonitrile and propionitrile
- alcohols such as methanol, ethanol, n-propanol and isopropanol
- aliphatic hydrocarbons such as hexane, heptane and octane
- benzene toluene and chlorobenzene
- Aromatic hydrocarbons, halogenated hydrocarbons such as dichloromethane, ethers such as tetrahydrofuran, esters such as ethyl acetate, and the like are preferably used alone or in combination or in combination.
- the organic solvent used is particularly preferably a nitrile or an alcohol, and most preferably acetonitrile or ethanol.
- the amount of these particularly preferable organic solvents used is 50% by weight or more of the total solvent, preferably 80% by weight or more, and particularly 100% by weight.
- the amount of the organic solvent used for crystallization may be appropriately set based on the solubility of the compound (1) in the organic solvent to be used. Usually, it is 1 to 200 times the weight of the compound (1), preferably The weight is 5 to 150 times.
- the cooling in crystallization the cooling is usually performed in the range of ⁇ 80 to 10 ° C. Crystallization may be performed in a stationary state or in a stirring state. Note that crystallization can be promoted by adding seed crystals.
- the crystallized compound (1) can be isolated as crystals by a general solid-liquid separation method.
- the reduced coenzyme Q 10 derivative of the present invention can be formulated as necessary.
- the dosage form is not particularly limited, and may be an oral preparation or applied directly to the skin.
- an oral preparation for example, a powder may be used, a binder may be added to form a granule, or a powder or granule may be filled into a capsule to form a capsule.
- the reduced coenzyme Q 10 derivative of the present invention can be mixed with an excipient or the like as necessary to form a tablet.
- a natural oil, an oily higher fatty acid, a higher fatty acid monoglyceride, a higher fatty acid diglyceride, a medium chain fatty acid triglyceride (MCT), a surfactant or a mixture thereof is added to the reduced coenzyme Q 10 derivative of the present invention to give an oil It can also be filled into a soft capsule.
- capsules mainly composed of gelatin or capsules mainly composed of other water-soluble polymer substances can also be used.
- Such capsules also include microcapsules. Or it is good also as liquid form as a drink agent.
- another carrier may be appropriately added and mixed by a conventional method as necessary. It is not particularly limited as such, for example, excipients, disintegrants, lubricants, binders, antioxidants, colorants, anti-aggregation agents, absorption promoters, solubilizers, stabilizers, etc. Is mentioned.
- the excipient is not particularly limited, and examples thereof include sucrose, lactose, glucose, corn starch (corn starch), mannitol, crystalline cellulose, calcium phosphate, and calcium sulfate.
- the disintegrant is not particularly limited, and examples thereof include starch, agar, calcium citrate, calcium carbonate, sodium hydrogen carbonate, dextrin, crystalline cellulose, carboxymethyl cellulose, tragacanth, and alginic acid.
- the lubricant is not particularly limited, and examples thereof include talc, magnesium stearate, polyethylene glycol, silica, and hardened vegetable oil.
- the binder is not particularly limited, and examples thereof include ethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose, tragacanth, shellac, gelatin, pullulan, gum arabic, polyvinyl pyrrolidone, polyvinyl alcohol, polyacrylic acid, polymethacrylic acid, and sorbitol. .
- the antioxidant is not particularly limited, and examples thereof include ascorbic acid, tocopherol, vitamin A, ⁇ -carotene, sodium bisulfite, sodium thiosulfate, sodium pyrosulfite, and citric acid.
- the colorant is not particularly limited, and for example, those permitted to be added to pharmaceuticals can be used.
- the aggregation inhibitor is not particularly limited, and examples thereof include stearic acid, talc, light anhydrous silicic acid, hydrous silicic acid dioxide, and the like.
- the absorption promoter is not particularly limited.
- surfactants such as higher alcohols, higher fatty acids, glycerin fatty acid esters, sucrose fatty acid esters, sorbitan fatty acid esters, polyoxyethylene, sorbitan fatty acid esters, and polyglycerin fatty acid esters.
- the solubilizing agent is not particularly limited, and examples thereof include organic acids such as fumaric acid, succinic acid and malic acid.
- the stabilizer is not particularly limited, and examples thereof include benzoic acid, sodium benzoate, ethyl paraoxybenzoate, beeswax, hydroxypropyl methylcellulose, and methylcellulose.
- the dosage form When applied directly to the skin, the dosage form is not particularly limited.
- the drug is dissolved or mixed and dispersed in an appropriate base to form a cream, paste, jelly, gel, or emulsion.
- a liquid or liquid in which the above drug is dissolved or mixed and dispersed in a base.
- a pressure-sensitive adhesive such as plaster and tape.
- base materials usually used for pharmaceuticals, cosmetics and the like can be used as long as they do not impair the effects of the present invention.
- a surfactant, a dye, a fragrance, and an active ingredient other than the reduced coenzyme Q 10 derivative can be further coexisted, if necessary.
- the surfactant is not particularly limited.
- glycerin fatty acid ester sucrose fatty acid ester, organic acid monoglyceride, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, propylene glycol fatty acid ester, condensed ricinoleic acid glyceride, saponin
- examples include phospholipids.
- the glycerin fatty acid ester is not particularly limited, and examples thereof include glycerin fatty acid esters in which the polymerization degree of glycerin is 1 to 10 and the fatty acid has 6 to 18 carbon atoms.
- the fatty acid residue constituting the glycerin fatty acid ester is not particularly limited, but fatty acids having 6 to 18 carbon atoms can be preferably used.
- caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid can be used.
- Examples include acids, stearic acid, isostearic acid, oleic acid, linoleic acid, and linolenic acid.
- the sucrose fatty acid ester is not particularly limited, and examples thereof include those in which a fatty acid having 6 to 22 carbon atoms is bonded to one or more hydroxyl groups of sucrose, specifically, sucrose laurate.
- the sorbitan fatty acid ester is not particularly limited, and examples thereof include those in which a fatty acid having 6 to 18 carbon atoms is ester-bonded to one or more hydroxyl groups of sorbitan, specifically, sorbitan monolaurate, sorbitan monoester Examples include palmitic acid ester, sorbitan monostearic acid ester, sorbitan monooleic acid ester and the like.
- the polyoxyethylene sorbitan fatty acid ester is not particularly limited.
- examples include oleic acid ester, polyoxyethylene sorbitan tristearic acid ester, and polyoxyethylene sorbitan trioleic acid ester.
- the polyglycerin condensed ricinoleic acid ester is not particularly limited.
- the average degree of polymerization of polyglycerin is 2 to 10
- the average degree of condensation of polyricinoleic acid (average number of condensation of ricinoleic acid) is 2 to 4.
- Specific examples thereof include tetraglycerin condensed ricinoleic acid ester, pentaglycerin condensed ricinoleic acid ester, hexaglycerin condensed ricinoleic acid ester and the like.
- the above propylene glycol fatty acid ester can be used regardless of monoester or diester.
- the fatty acid residue constituting the propylene glycol fatty acid ester is not particularly limited, but those having 6 to 18 carbon atoms can be preferably used.
- caprylic acid, capric acid, lauric acid, myristic Examples include acids, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, linolenic acid and the like.
- the phospholipid is not particularly limited. Examples include ceramide phosphorylethanolamine, ceramide phosphorylglycerol, and mixtures thereof. Needless to say, phospholipids subjected to processing such as hydrogenation and enzymatic degradation can also be used. From the viewpoint of improving the absorbability of the reduced coenzyme Q 10 derivative, it is preferable to use an enzymatically decomposed phospholipid.
- the saponin is not particularly limited, and examples include enju saponin, kiraya saponin, purified soybean saponin, and yucca saponin.
- the dye is not particularly limited, and examples thereof include titanium oxide, synthetic dye, bengara dye, tar dye, and the like.
- fragrance flavor, Orange oil, capsicum oil, mustard oil, garlic oil, caraway oil, clove oil, cinnamon oil, cocoa extract, coffee bean extract, ginger oil, spearmint oil, celery seed oil , Thyme oil, onion oil, nutmeg oil, parsley seed oil, bran oil, vanilla extract, funnel oil, peni royal oil, paper mint oil, eucalyptus oil, lemon oil, rose oil, rosemary oil, almond oil, ajowan oil , Anise oil, Amiris oil, Angelica root oil, Ambrette seed oil, Estragon oil, Origanum oil, Oris root oil, Olivenum oil, Cassia oil, Cascarilla oil, Kananga oil, Chamomile oil, Calamus oil, Cardamom oil, Carrot seed oil , Cubeb oil, cumin oil, grapefruit oil, cinnamon oil, cade , Pepper oil, costas root oil, cognac oil, copaiba oil, coriander oil, perilla oil, savory, juniper
- starch may serve as an excipient and a disintegrant.
- the preparation containing the reduced coenzyme Q 10 derivative of the present invention may contain other nourishing tonic ingredients.
- the nourishing tonic component is not particularly limited, and for example, creatine, taurine, vitamin B 1 , vitamin B derivatives, or amino acids are suitable. The above may be used alone or in combination of two or more. An additive or synergistic effect can be further expected by mixing these components with the reduced coenzyme Q 10 derivative of the present invention.
- the preparation containing the reduced coenzyme Q 10 derivative of the present invention can also contain a nutritional supplement component.
- the nutritional supplement component is not particularly limited, and examples thereof include amino acids, metal ions, saccharides, proteins, fatty acids, and vitamins.
- the form of the food when the reduced coenzyme Q 10 derivative of the present invention is contained in a general food is not particularly limited, but is an edible oil / fat composition, cooking oil, spray oil, butters, margarine, shortening , Whipped cream, concentrated milk, whiteners, dressings, pickle liquids, breads, cakes, pies, cookies, Japanese confectionery, snacks, oil confectionery, chocolate and chocolate confectionery, rice confectionery , Roux, sauces, sauces, toppings, frozen desserts, noodles, bakery mixes, fried foods, processed meat products, marine products, frozen entrées, livestock frozen foods, agricultural frozen foods, etc. , Cooked rice, jams, cheese, cheese food, cheese-like food, gums, candy, fermented milk, canned foods, beverages, etc. .
- Example 1 Reduced coenzyme Q 10 (bisethyl carbonate derivative) in which the hydroxyl groups at positions 1 and 4 are both ethoxycarbonylated Weigh 10 g of reduced coenzyme Q 10 crystal in a flask, dissolve with nitrogen after adding 50 ml of pyridine, replace with nitrogen again, add ethyl chloroformate dropwise at room temperature, and confirm the progress of the reaction by TLC. until reduced coenzyme Q 10 and reaction intermediates unreacted disappeared while, followed by the addition of ethyl chloroformate. As a result, the added ethyl chloroformate was 12 ml.
- the reaction solution was diluted with 100 ml of hexane, and the precipitated pyridine hydrochloride was filtered.
- the target product was extracted into the organic layer by adding 100 ml of purified water to the filtrate and liquid separation, and the separated aqueous layer was re-extracted with 100 ml of hexane.
- the combined organic layers were washed with 100 ml of purified water, dried over sodium sulfate, filtered, concentrated and vacuum dried to obtain a crude product of bisethyl carbonate derivative.
- the obtained crude product of bisethyl carbonate derivative was dissolved in 100 ml of ethyl acetate, the insoluble matter was removed by filtration, concentrated, 1000 ml of ethanol was added to the concentrate and dissolved at 50 ° C., and then gradually cooled to 4 ° C. Made it.
- the obtained milky white solid was filtered and dried under vacuum to obtain a crystalline bisethyl carbonate derivative (7.9 g).
- Example 2 Reduced coenzyme Q 10 (bisisopropyl carbonate derivative) in which the hydroxyl groups at positions 1 and 4 are both isopropyloxycarbonylated
- pyridine 20ml was added and dissolved after nitrogen replacement, after purged with nitrogen again, and added dropwise to isopropyl chloroformate at room temperature, check the progress of the reaction by TLC until reduced coenzyme Q 10 and reaction intermediates unreacted disappeared while, followed by the addition of isopropyl chloroformate.
- the added isopropyl chloroformate was 1.1 ml.
- the reaction solution was diluted with 50 ml of hexane, and the precipitated pyridine hydrochloride was filtered.
- the target product was extracted into the organic layer by adding 40 ml of purified water to the filtrate and liquid separation, and the separated aqueous layer was re-extracted twice with 40 ml of hexane.
- the combined organic layers were washed with 40 ml of purified water, dried over sodium sulfate, filtered, concentrated and vacuum dried to obtain a crude product of bisisopropyl carbonate derivative.
- 100 ml of ethanol was added and dissolved at 50 ° C., and then slowly cooled to ⁇ 15 ° C. for crystallization.
- the resulting pale yellow solid was filtered and dried under vacuum to obtain a crystalline bisisopropyl carbonate derivative (1.9 g).
- Example 3 Reduced coenzyme Q 10 (bisisobutyl carbonate derivative) in which hydroxyl groups at positions 1 and 4 are both isobutyloxycarbonylated Weighed reduced coenzyme Q 10 crystal 2g flask, pyridine 20ml was added and dissolved after nitrogen replacement, after purged with nitrogen again, was added dropwise isobutylchloroformate at room temperature, check the progress of the reaction by TLC until reduced coenzyme Q 10 and reaction intermediates unreacted disappeared while, followed by the addition of isobutyl chloroformate. As a result, the added isobutyl chloroformate was 0.74 ml.
- the reaction solution was diluted with 50 ml of hexane, and the precipitated pyridine hydrochloride was filtered.
- the target product was extracted into the organic layer by adding 40 ml of purified water to the filtrate and liquid separation, and the separated aqueous layer was re-extracted twice with 40 ml of hexane.
- the combined organic layers were washed with 40 ml of purified water, dried over sodium sulfate, filtered, concentrated and vacuum dried to obtain a crude product of bisisobutyl carbonate derivative.
- 100 ml of ethanol was added and dissolved at 50 ° C., and then gradually cooled to ⁇ 15 ° C. for crystallization.
- the obtained pale yellow solid was filtered and dried under vacuum to obtain a crystalline bisisobutyl carbonate derivative (2.1 g).
- Example 4 Reduced coenzyme Q 10 (biscyclopentyl carbonate derivative) in which the hydroxyl groups at positions 1 and 4 are both cyclopentyloxycarbonylated Weigh 1 g of reduced coenzyme Q 10 crystal in a flask, add 10 ml of pyridine after nitrogen substitution, dissolve, and then purge with nitrogen again. Add cyclopentyl chloroformate dropwise at room temperature and confirm the progress of the reaction by TLC. until reduced coenzyme Q 10 and reaction intermediates unreacted disappeared while, followed by the addition of cyclopentyl chloroformate. As a result, the added cyclopentyl chloroformate was 0.8 ml.
- the reaction solution was diluted with 50 ml of hexane, and the precipitated pyridine hydrochloride was filtered.
- the target product was extracted into the organic layer by adding 40 ml of purified water to the filtrate and liquid separation, and the separated aqueous layer was re-extracted twice with 40 ml of hexane.
- the combined organic layers were washed with 40 ml of purified water, dried over sodium sulfate, filtered, concentrated and vacuum dried to obtain a crude product of biscyclopentyl carbonate derivative.
- the obtained crude product of biscyclopentyl carbonate derivative was added with 100 ml of ethanol and dissolved at 50 ° C., and then slowly cooled to ⁇ 15 ° C. for crystallization. The resulting pale yellow solid was filtered and dried under vacuum to obtain a crystalline biscyclopentyl carbonate derivative (1.1 g).
- Example 5 Reduced coenzyme Q 10 (bisphenyl carbonate derivative) in which the hydroxyl groups at positions 1 and 4 are both phenyloxycarbonylated Weighed reduced coenzyme Q 10 crystal 2g flask, pyridine 20ml was added and dissolved after nitrogen replacement, after purged with nitrogen again, and added dropwise phenyl chloroformate at room temperature, check the progress of the reaction by TLC until reduced coenzyme Q 10 and reaction intermediates unreacted disappeared while, followed by the addition of phenyl chloroformate. As a result, the added phenyl chloroformate was 0.8 ml.
- the reaction solution was diluted with 40 ml of hexane, and the precipitated pyridine hydrochloride was filtered.
- the filtrate was added with 80 ml of 4% sodium bicarbonate solution and separated to extract the target product into the organic layer, and the separated aqueous layer was re-extracted twice with 40 ml of hexane.
- the combined organic layers were washed with 40 ml of 4% aqueous sodium bicarbonate, dried over sodium sulfate, filtered, concentrated and vacuum dried to obtain a crude product of bisphenyl carbonate derivative.
- 200 ml of ethanol was added and dissolved at 65 ° C., and then slowly cooled to ⁇ 15 ° C. for crystallization.
- the obtained pale yellow solid was filtered and dried under vacuum to obtain a crystalline bisphenyl carbonate derivative (2.1 g).
- Example 6 Reduced coenzyme Q 10 (bis n-butyl carbonate derivative) in which the hydroxyl groups at positions 1 and 4 are both n-butyloxycarbonylated
- the reaction solution was diluted with 50 ml of hexane, and the precipitated pyridine hydrochloride was filtered.
- the target product was extracted into the organic layer by adding 40 ml of purified water to the filtrate and liquid separation, and the separated aqueous layer was re-extracted twice with 40 ml of hexane.
- the combined organic layers were washed with 40 ml of purified water, dried over sodium sulfate, filtered, concentrated, and vacuum dried to obtain a crude product of bis n-butyl carbonate derivative.
- Example 7 Reduced coenzyme Q 10 (monoisobutyl carbonate derivative) in which one of the hydroxyl groups at the 1-position or 4-position is isobutyloxycarbonylated 20 g of reduced coenzyme Q 10 crystals were weighed into a flask, and after nitrogen substitution, 200 ml of normal hexane and 20 g of pyridine were added and dissolved. Isobutyl chloroformate was added dropwise under ice cooling, and the addition of isobutyl chloroformate was continued until the unreacted reduced coenzyme Q 10 disappeared while confirming the progress of the reaction by TLC. As a result, the added isobutyl chloroformate was 12.8 g.
- the reaction solution was added to 200 ml of ice water to obtain an organic layer.
- the organic layer was washed twice with 100 ml of purified water, dried over sodium sulfate, filtered, concentrated and vacuum dried to obtain a crude product of monoisobutyl carbonate derivative.
- Example 8 In the same manner as in Example 2, a crude product of a bisisopropyl carbonate derivative was obtained. 5 g of ethyl acetate and 45 g of acetonitrile were added to 1.0 g of the obtained crude product of bisisopropyl carbonate derivative and dissolved at 50 ° C., and then slowly cooled to 20 ° C., and seed crystals were added. Further, the mixture was cooled to ⁇ 10 ° C. to promote crystallization, and then aged at 5 ° C. The obtained white needle crystal was filtered and dried under vacuum to obtain 650 mg of bisisopropyl carbonate derivative in crystal form. As a result of the powder X-ray diffraction measurement of the obtained crystal, there was no difference from the result of the powder X-ray diffraction measurement of Example 2, and the crystal was the same shape.
- Reference Example 1 Reduced coenzyme Q 10 (bisacetyl derivative) in which the hydroxyl groups at positions 1 and 4 are both acetylated 10 g of reduced coenzyme Q 10 crystals were weighed into a flask, dissolved in 50 ml of pyridine after nitrogen substitution, and after substitution with nitrogen again, 3 ml of acetic anhydride was added dropwise at room temperature. After stirring for 3 hours, the reaction solution was diluted with 100 ml of hexane, and added to 100 ml of ice water to stop the reaction. After separating the organic layer, the separated aqueous layer was re-extracted with 100 ml of hexane.
- Example 9 7-week-old male Spregue-Dawley rats: and derivatives of reduced coenzyme Q 10 obtained in Example 3, 4, 5 (available source Nippon SLC, Inc.), a raw material of reduced coenzyme Q as a control 10 were orally administered at 57.8 ⁇ mol / kg (50 mg / kg in terms of reduced coenzyme Q 10 ).
- Blood was collected from each rat 1, 2, 4, 8 and 24 hours after administration of each sample. The collected blood was centrifuged to obtain plasma. Thereafter, oxidation treatment of reduced coenzyme Q 10 in plasma and extraction treatment of oxidized coenzyme Q 10 were performed, and the total coenzyme Q 10 concentration in plasma was measured as oxidized coenzyme Q 10 using HPLC. did.
- Comparative Example 1 7-week-old male Spregue-Dawley rats: and (available source Nippon SLC, Inc.) to a derivative of the obtained reduced coenzyme Q 10 in Reference Example 1, the raw material reduced coenzyme Q 10 as a control, respectively It was orally administered so as to be 57.8 ⁇ mol / kg (50 mg / kg in terms of reduced coenzyme Q 10 ). Blood was collected from each rat 1, 2, 4, 8 and 24 hours after administration of each sample. The collected blood was centrifuged to obtain plasma. Thereafter, oxidation treatment of reduced coenzyme Q 10 in plasma and extraction treatment of oxidized coenzyme Q 10 were performed, and the total coenzyme Q 10 concentration in plasma was measured as oxidized coenzyme Q 10 using HPLC. did.
- the reduced coenzyme Q 10 derivative of the present invention can be used for foods and drinks such as health foods and health functional foods (specific health foods, nutritional functional foods), pharmaceuticals, quasi drugs, cosmetics, and the like.
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Abstract
Description
また、本発明は、上記式(1)で表される新規な還元型補酵素Q10誘導体の結晶にも関する。
前記アルキル基に結合してもよい置換基には、例えば、ハロゲン基(好ましくは、クロロ基、ブロモ基。特にクロロ基)、ニトロ基、ニトリル基、アルコキシ基(好ましくはメトキシ基、エトキシ基などのC1-4アルコキシ基)、アルケニル基(好ましくはビニル基、プロペニル基など)、アルキニル基、アリール基(フェニル基、ナフチル基など)などが含まれる。
前記アリール基やヘテロアリール基に結合してもよい置換基には、例えば、ハロゲン基(好ましくは、クロロ基、ブロモ基。特にクロロ基)、ニトロ基、ニトリル基、アルコキシ基(好ましくはメトキシ基、エトキシ基などのC1-4アルコキシ基)、アルキル基(好ましくはメチル基、エチル基などのC1-4アルキル基)などが含まれる。
前記炭素数6~20の置換されていてもよいアリール基としては、特に限定されないが、例えば、フェニル基、4-メチルフェニル基、4-メトキシフェニル基、4-ニトロフェニル基、4-クロロフェニル基などが例示できる。また、前記炭素数4~20の置換されていてもよいヘテロアリール基としては、特に限定されないが、例えば、2-フラニル基、2-チオフェニル基、2-ピリジル基、4-メチル-2-ピリジル基などが例示できる。
好ましいアリール基は、置換されていてもよいフェニル基である。
本明細書において、結晶を回折角2θを用いて回折ピークの位置で規定する場合には、回折角2θの値は、上記ピークがあるとして示された値およびそれに基づく範囲のみに限定されず、誤差の生じうる範囲は、本発明の結晶における回折角2θ値として包含することができる。そのような誤差の生ずる範囲は、測定条件などから当業者であれば容易に予測可能であり、例えばその誤差範囲は±0.2°、好ましくは±0.1°である。
で表されるハロゲン化炭酸エステルや、下記式(5):
で表される酸無水物などが挙げられる。上記式(4)のハロゲン化炭酸エステルにおいて、Xはハロゲン原子であれば特に限定されないが、フッ素原子、塩素原子、または臭素原子が好ましく、塩素原子が特に好ましい。本発明の製造方法において、反応時に使用されるアルコキシカルボニル化剤の量は、化合物(3)に対して通常1.0倍モル量以上必要であり、上限は特に限定されないが、経済的な観点からは20倍モル量以下で十分である。好ましくは1.2~15倍モル量である。
ギ酸エステルとしては、例えば、ギ酸メチル、ギ酸エチル、ギ酸プロピル、ギ酸イソプロピル、ギ酸ブチル、ギ酸イソブチル、ギ酸sec-ブチル、ギ酸ペンチルなどを挙げることができる。好ましくは、ギ酸メチル、ギ酸エチル、ギ酸プロピル、ギ酸ブチル、ギ酸イソブチル、ギ酸ペンチルなどであり、最も好ましくは、ギ酸エチルである。
(NMR測定条件)
装置:JEOL 400MHz RhamdaまたはJEOL 500MHz ECA-500 Delta
(粉末X線回折(XRD)測定条件)
装置 : リガク製 MiniFlexII
使用エックス線: Cu-Kα線
強度 : 30kV,15mA
角度 : 2θ=2~60°
走査速度 : 2°/分
ダイバージェンススリット(DS):1.25°
スキャッタスリット (SS):1.25°
レシーピングスリット (RS):0.3mm
還元型補酵素Q10結晶10gをフラスコに計り取り、窒素置換後にピリジン50mlを加え溶解し、再度窒素置換した上で、室温下にてエチルクロロホルメートを滴下し、TLCで反応の進行を確認しながら未反応の還元型補酵素Q10や反応中間体が消失するまで、エチルクロロホルメートの添加を続けた。結果、添加したエチルクロロホルメートは12mlであった。反応液にヘキサン100mlを加えて希釈し、析出したピリジン塩酸塩をろ過した。ろ液に精製水100mlを加えて分液することで目的物を有機層に抽出し、分離した水層を100mlのヘキサンで再抽出した。合わせた有機層を100mlの精製水で洗浄し、硫酸ナトリウムで乾燥後、ろ過、濃縮、真空乾燥し、ビスエチルカーボネート誘導体の粗製物を得た。得られたビスエチルカーボネート誘導体の粗製物を酢酸エチル100mlに溶解し、不溶物をろ過で除き、濃縮し、濃縮物にエタノール1000mlを加え50℃で溶解した後、4℃まで徐冷して結晶化させた。得られた乳白色固体をろ過、真空乾燥し、結晶形態のビスエチルカーボネート誘導体(7.9g)を得た。
1H-NMR(CDCl3) δ:5.04-5.14 (m, 9H); 5.00 (t, J=6.2Hz, 1H); 4.33 (q, J=7.1Hz, 2H); 4.21 (q, J=7.2Hz, 2H); 3.87 (s+s; 6H); 3.27 (d, J=6.3Hz, 2H); 1.93-2.13 (m, 36H); 1.73 (s, 3H); 1.68 (s, 3H); 1.56-1.64 (m, 27H); 1.55 (s, 3H);
1.40 (t, J=7.1Hz, 3H); 1.38 (t, J=7.1Hz, 3H)
さらに、得られた結晶の粉末X線回折測定を行った。結果を表1に示す。
還元型補酵素Q10結晶2gをフラスコに計り取り、窒素置換後にピリジン20mlを加え溶解し、再度窒素置換した上で、室温下にてイソプロピルクロロホルメートを滴下し、TLCで反応の進行を確認しながら未反応の還元型補酵素Q10や反応中間体が消失するまで、イソプロピルクロロホルメートの添加を続けた。結果、添加したイソプロピルクロロホルメートは1.1mlであった。反応液にヘキサン50mlを加えて希釈し、析出したピリジン塩酸塩をろ過した。ろ液に精製水40mlを加えて分液することで目的物を有機層に抽出し、分離した水層を40mlのヘキサンで2回再抽出した。合わせた有機層を40mlの精製水で洗浄し、硫酸ナトリウムで乾燥後、ろ過、濃縮、真空乾燥し、ビスイソプロピルカーボネート誘導体の粗製物を得た。得られたビスイソプロピルカーボネート誘導体の粗製物にエタノール100mlを加え50℃で溶解した後、-15℃まで徐冷して結晶化させた。得られた微黄色固体をろ過、真空乾燥し、結晶形態のビスイソプロピルカーボネート誘導体(1.9g)を得た。
1H-NMR(CDCl3) δ:5.05-5.14 (m, 9H); 4.93-5.03 (t, 3H); 3.87 (s, 6H); 3.27 (d, J=6.3Hz, 2H); 2.10 (s, 3H); 1.93-2.10 (m, 36H); 1.73 (s, 3H); 1.68 (s, 3H); 1.54-1.62 (m, 27H); 1.39 (d, J=6.3Hz, 6H); 1.37 (d, J=6.3Hz, 6H)
さらに、得られた結晶の粉末X線回折測定を行った。結果を表2に示す。
還元型補酵素Q10結晶2gをフラスコに計り取り、窒素置換後にピリジン20mlを加え溶解し、再度窒素置換した上で、室温下にてイソブチルクロロホルメートを滴下し、TLCで反応の進行を確認しながら未反応の還元型補酵素Q10や反応中間体が消失するまで、イソブチルクロロホルメートの添加を続けた。結果、添加したイソブチルクロロホルメートは0.74mlであった。反応液にヘキサン50mlを加えて希釈し、析出したピリジン塩酸塩をろ過した。ろ液に精製水40mlを加えて分液することで目的物を有機層に抽出し、分離した水層を40mlのヘキサンで2回再抽出した。合わせた有機層を40mlの精製水で洗浄し、硫酸ナトリウムで乾燥後、ろ過、濃縮、真空乾燥し、ビスイソブチルカーボネート誘導体の粗製物を得た。得られたビスイソブチルカーボネート誘導体の粗製物にエタノール100mlを加え50℃で溶解した後、-15℃まで徐冷して結晶化させた。得られた微黄色固体をろ過、真空乾燥し、結晶形態のビスイソブチルカーボネート誘導体(2.1g)を得た。
1H-NMR(CDCl3) δ: 5.05-5.14 (m, 9H); 5.00 (t, J=6.4Hz, 1H); 4.06 (d, J=6.9Hz, 2H); 4.04 (d, J=6.9H z, 2H); 3.86 (s, 6H); 3.27 (d, J=6.3Hz, 2H); 2.11 (s, 3H); 1.93-2.10 (m, 36H); 1.73 (s, 3H); 1.68 (s, 3H); 1.54-1.63 (m, 29H); 1.00 (d, J=6.9Hz, 6H); 0.99 (d, J=6.9Hz, 6H)
さらに、得られた結晶の粉末X線回折測定を行った。結果を表3に示す。
還元型補酵素Q10結晶1gをフラスコに計り取り、窒素置換後にピリジン10mlを加え溶解し、再度窒素置換した上で、室温下にてシクロペンチルクロロホルメートを滴下し、TLCで反応の進行を確認しながら未反応の還元型補酵素Q10や反応中間体が消失するまで、シクロペンチルクロロホルメートの添加を続けた。結果、添加したシクロペンチルクロロホルメートは0.8mlであった。反応液にヘキサン50mlを加えて希釈し、析出したピリジン塩酸塩をろ過した。ろ液に精製水40mlを加えて分液することで目的物を有機層に抽出し、分離した水層を40mlのヘキサンで2回再抽出した。合わせた有機層を40mlの精製水で洗浄し、硫酸ナトリウムで乾燥後、ろ過、濃縮、真空乾燥し、ビスシクロペンチルカーボネート誘導体の粗製物を得た。得られたビスシクロペンチルカーボネート誘導体の粗製物にエタノール100mlを加え50℃で溶解した後、-15℃まで徐冷して結晶化させた。得られた微黄色固体をろ過、真空乾燥し、結晶形態のビスシクロペンチルカーボネート誘導体(1.1g)を得た。
1H-NMR(CDCl3) δ:5.19 (m, 2H); 5.06-5.14 (m, 9H); 4.99 (t, J=6.0Hz, 1H); 3.86 (s, 6H); 3.26 (d, J=6.3Hz, 2H); 1.75-2.10 (m, 47H); 1.73 (s, 3H); 1.68 (s, 3H); 1.54-1.67 (m, 35H)
さらに、得られた結晶の粉末X線回折測定を行った。結果を表4に示す。
還元型補酵素Q10結晶2gをフラスコに計り取り、窒素置換後にピリジン20mlを加え溶解し、再度窒素置換した上で、室温下にてフェニルクロロホルメートを滴下し、TLCで反応の進行を確認しながら未反応の還元型補酵素Q10や反応中間体が消失するまで、フェニルクロロホルメートの添加を続けた。結果、添加したフェニルクロロホルメートは0.8mlであった。反応液にヘキサン40mlを加えて希釈し、析出したピリジン塩酸塩をろ過した。ろ液に4%重曹水80mlを加えて分液することで目的物を有機層に抽出し、分離した水層を40mlのヘキサンで2回再抽出した。合わせた有機層を40mlの4%重曹水で洗浄し、硫酸ナトリウムで乾燥後、ろ過、濃縮、真空乾燥し、ビスフェニルカーボネート誘導体の粗製物を得た。得られたビスフェニルカーボネート誘導体の粗製物にエタノール200mlを加え65℃で溶解した後、-15℃まで徐冷して結晶化させた。得られた微黄色固体をろ過、真空乾燥し、結晶形態のビスフェニルカーボネート誘導体(2.1g)を得た。
1H-NMR(CDCl3) δ:7.38-7.44 (m, 4H); 7.23-7.30 (m, 6H); 5.03-5.14 (m, 10H); 3.94 (s, 6H); 3.38 (d, J=6.3Hz, 2H); 2.22 (s, 3H); 1.92-2.10 (m, 36H);
1.79 (s, 3H); 1.68 (s, 3H); 1.57-1.61 (m, 24H); 1.56 (s, 3H)
さらに、得られた結晶の粉末X線回折測定を行った。結果を表5に示す。
還元型補酵素Q10結晶2gをフラスコに計り取り、窒素置換後にピリジン20mlを加え溶解し、再度窒素置換した上で、室温下にてn-ブチルクロロホルメートを滴下し、TLCで反応の進行を確認しながら未反応の還元型補酵素Q10や反応中間体が消失するまで、n-ブチルクロロホルメートの添加を続けた。結果、添加したn-ブチルクロロホルメートは0.75mlであった。反応液にヘキサン50mlを加えて希釈し、析出したピリジン塩酸塩をろ過した。ろ液に精製水40mlを加えて分液することで目的物を有機層に抽出し、分離した水層を40mlのヘキサンで2回再抽出した。合わせた有機層を40mlの精製水で洗浄し、硫酸ナトリウムで乾燥後、ろ過、濃縮、真空乾燥し、ビスn-ブチルカーボネート誘導体の粗製物を得た。得られたビスn-ブチルカーボネート誘導体の粗製物をシリカゲルカラムクロマトグラフィーで精製(ヘキサン:酢酸エチル=19:1~9:1)して、ビスn-ブチルカーボネート誘導体(1.2g)を得た。冷蔵条件では結晶形態であったが、室温では油状となった。
還元型補酵素Q10結晶20gをフラスコに計り取り、窒素置換後にノルマルヘキサン200mlとピリジン20gを加え溶解した。氷冷下にてイソブチルクロロホルメートを滴下し、TLCで反応の進行を確認しながら未反応の還元型補酵素Q10が消失するまで、イソブチルクロロホルメートの添加を続けた。結果、添加したイソブチルクロロホルメートは12.8gであった。反応液を氷水200mlに加えて、有機層を取得した。有機層を精製水100mlで2回洗浄し、硫酸ナトリウムで乾燥後、ろ過、濃縮、真空乾燥し、モノイソブチルカーボネート誘導体の粗製物を得た。得られたモノイソブチルカーボネート誘導体の粗製物をシリカゲルカラムクロマトグラフィー(ヘキサン:酢酸エチル=20:1)で精製し、1位または4位がそれぞれイソブチルオキシカルボニル化されたモノイソブチルカーボネート誘導体を得た。
1H-NMR(CDCl3) δ:5.72 (s, 1H); 5.05-5.14 (m, 9H); 5.01 (m, 1H); 4.03 (d, J=6.9Hz, 2H); 3.92 (s, 3H); 3.85 (s, 3H); 3.25 (d, J=6.2Hz, 2H); 2.15 (s, 3H); 1.90-2.11 (m, 36H); 1.73 (s, 3H); 1.68 (s, 3H); 1.52-1.63 (m, 28H); 0.99 (d, J=6.9Hz, 6H)
実施例2と同様の方法で、ビスイソプロピルカーボネート誘導体の粗製物を得た。得られたビスイソプロピルカーボネート誘導体の粗製物1.0gに酢酸エチル5gとアセトニトリル45gを加え50℃で溶解した後、20℃まで徐冷して種晶を添加した。さらに-10℃まで除冷して結晶化を促進し、その後5℃にて熟成を行なった。得られた白色針状結晶をろ過、真空乾燥し、結晶形態のビスイソプロピルカーボネート誘導体650mgを得た。
得られた結晶の粉末X線回折測定を行った結果、実施例2の粉末X線回折測定の結果と差異は無く、同一形の結晶であった。
還元型補酵素Q10結晶10gをフラスコに計り取り、窒素置換後にピリジン50mlを加え溶解し、再度窒素置換した上で、室温下にて無水酢酸3mlを滴下した。3時間撹拌した後に、反応液にヘキサン100mlを加えて希釈し、100mlの氷水に加えて反応を停止させた。有機層を分離した後に、分離した水層を100mlのヘキサンで再抽出した。合わせた有機層を100mlの精製水で2回洗浄し、硫酸ナトリウムで乾燥後、ろ過、濃縮、真空乾燥し、ビスアセチル誘導体の粗製物を得た。得られたビスアセチル誘導体の粗製物にエタノール400mlを加え55℃で溶解したのち、徐冷した。得られた乳白色固体をろ過、真空乾燥し、ビスアセチル誘導体(7.3g)を得た。
1H-NMR(CDCl3) δ:5.04-5.14 (m, 9H); 4.98 (t, J=6.1Hz, 1H); 3.83 (s+s, 6H); 3.21 (d, J=6.6Hz, 2H); 2.35 (s, 3H); 2.31 (s, 3H); 1.92-2.10 (m, 39H);
1.73 (s, 3H); 1.68 (s, 3H); 1.52-1.65 (m, 27H)
7週齢の雄性Spregue-Dawleyラット(入手元:日本エスエルシー株式会社)に実施例3,4,5で得られた還元型補酵素Q10の誘導体と、対照として原料の還元型補酵素Q10を、それぞれ57.8μmol/kg(還元型補酵素Q10換算で50mg/kg)になるように経口投与した。各試料の投与1、2、4、8および24時間後に各ラットより血液を採取した。採取した血液を遠心分離し、血漿を得た。その後、血漿中の還元型補酵素Q10の酸化処理、および酸化型補酵素Q10の抽出処理を行い、HPLCを用いて血漿中の総補酵素Q10濃度を酸化型補酵素Q10として測定した。
7週齢の雄性Spregue-Dawleyラット(入手元:日本エスエルシー株式会社)に参考例1で得られた還元型補酵素Q10の誘導体と、対照として原料の還元型補酵素Q10を、それぞれ57.8μmol/kg(還元型補酵素Q10換算で50mg/kg)になるように経口投与した。各試料の投与1、2、4、8および24時間後に各ラットより血液を採取した。採取した血液を遠心分離し、血漿を得た。その後、血漿中の還元型補酵素Q10の酸化処理、および酸化型補酵素Q10の抽出処理を行い、HPLCを用いて血漿中の総補酵素Q10濃度を酸化型補酵素Q10として測定した。
Claims (15)
- R3が炭素数1~6の直鎖、分岐あるいは環状のアルキル基または炭素数6~10のアリール基である請求項1に記載の還元型補酵素Q10誘導体。
- R1とR2が同一である、請求項1または2に記載の還元型補酵素Q10誘導体。
- R3が炭素数2~6の直鎖、分岐あるいは環状のアルキル基または炭素数6~10のアリール基である請求項4に記載の還元型補酵素Q10誘導体の結晶。
- R3が、エチル基、イソプロピル基、イソブチル基、シクロペンチル基またはフェニル基である請求項4に記載の還元型補酵素Q10誘導体の結晶。
- R1とR2が同一である、請求項4~6いずれか1項に記載の還元型補酵素Q10誘導体の結晶。
- 有機溶媒中で結晶化する工程を含む請求項8に記載の製造方法。
- 有機溶媒が、ニトリル類、アルコール類、脂肪族炭化水素類、芳香族炭化水素類、ハロゲン化炭化水素類、エーテル類およびエステル類からなる群より選ばれる1種以上の有機溶媒である請求項9に記載の製造方法。
- 有機溶媒が、ニトリル類及び/またはアルコール類である請求項9に記載の製造方法。
- 有機溶媒がニトリル類である請求項10に記載の製造方法。
- ニトリル類がアセトニトリルである請求項12に記載の製造方法。
- 有機溶媒がアルコール類である請求項10に記載の製造方法。
- アルコール類がエタノールである請求項14に記載の製造方法。
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