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CN110357844A - A kind of epimedium aglucone derivative and its preparation method and application - Google Patents

A kind of epimedium aglucone derivative and its preparation method and application Download PDF

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Publication number
CN110357844A
CN110357844A CN201810253109.4A CN201810253109A CN110357844A CN 110357844 A CN110357844 A CN 110357844A CN 201810253109 A CN201810253109 A CN 201810253109A CN 110357844 A CN110357844 A CN 110357844A
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compound
epimedium aglucone
formula
group
derivative
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张贵民
黄文波
杨德亮
王本利
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Lunan Pharmaceutical Group Corp
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Lunan Pharmaceutical Group Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00—Drugs for disorders of the respiratory system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P19/00—Drugs for skeletal disorders
    • A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
    • C07D311/26—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3
    • C07D311/28—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3 with aromatic rings attached in position 2 only
    • C07D311/30—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3 with aromatic rings attached in position 2 only not hydrogenated in the hetero ring, e.g. flavones
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    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

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Abstract

The invention belongs to field of medicinal chemistry, and in particular to epimedium aglucone derivative, such as formula (I), and its salt pharmacologically allowed with and preparation method thereof and its treat asthma in preparation, the purposes of drug in terms of bone marrow suppression.

Description

A kind of epimedium aglucone derivative and its preparation method and application
Technical field
The invention belongs to field of medicinal chemistry, and in particular to epimedium aglucone derivative and its salt pharmacologically allowed with And its preparation method and application.
Background technique
Epimedium aglucone (icaritin, ICT) is one of Berberidaceae barrenwort Herba Epimedii polyhydroxy flavones Class monomer component, structural formula are as follows:
Epimedium aglucone can isolated from the cylinder metabolism-ure of epimedium herb or icariin (Sun Pengyue, Xu Grain husk, text is bright etc., the chemical component of korean epimedium herb, Chinese Plants The Chemicals, 1998,8 (2): 122-125；Liu strong determined person, king It is firm, Wu Lijun etc., metabolic conversion of the intestines bacterium metabolism research I. intestinal bacterium of icariin to icariin, 2000,31 (11): 834-837), or by icariin through digest it is isolated (Ye Haiyong, Liu Jian, Lou Yijia, the preparation of two derivatives from icariin and investigation and Its estrogen-like effects, journal of Zhejiang university, 2005,34 (2): 131-136).
There is document report epimedium aglucone and causes rat primary cultured nerve cell apoptosis (Zhang Xiang with anti-A β peptide South, Wang Huanhuan, Wang Zhiqiang etc., the anti-A β peptide of epimedium aglucone cause the effect of rat primary cultured nerve cell apoptosis, Zhejiang University Journal, 2007,36 (3): 224-226).It is raw with antineoplastic vascular that Chinese patent CN101836976A discloses epimedium aglucone At effect.Chinese patent CN101428015A, which discloses epimedium aglucone, has the function for the treatment of endotoxemia.Chinese patent CN101284000A, which discloses epimedium aglucone, to be had the function of preventing and treating obesity or fatty liver.Chinese patent CN1869204A is public Purposes of the epimedium aglucone in terms of inducing stem cell in vitro directed differentiation is opened.
Epimedium aglucone has extensive pharmacological activity, but its dissolubility is poor, slightly molten in methylene chloride and ethyl acetate, It is almost insoluble in methanol, dehydrated alcohol and water, it is almost insoluble or insoluble in different pH buffers.The oral life of epimedium aglucone Object availability is low.
Summary of the invention
The purpose of the present invention is to provide a kind of epimedium aglucone derivative of structure novel and its pharmacologically allow Salt.
In the first aspect of the invention, the salt for providing epimedium aglucone derivative and its pharmacologically allowing, excessive sheep Shown in the structure of leaves of pulse plants aglycone derivative such as formula (I),
In formula (I), R1And R3Separately selected from hydrogen, the C replaced by amino, hydroxyl, carboxyl1-4Alkyl, L ,-(CH2)mOX, by C1-4Alkyl-substituted aminoacyl；
L is selected from hydrogen, glycine, alanine, valine, isoleucine, leucine, threonine, serine, glutamic acid, relies Propylhomoserin ,-CO (CH2)mCOOH；
The halogen is selected from F, Cl, Br or I；
R7And R8Separately it is selected from hydrogen, halogen, hydroxyl, amino.
R1And R3The C for not taking H simultaneously or being replaced by amino, hydroxyl, carboxyl1-4Alkyl.
Further, the C1-4Alkyl is methyl, ethyl, propyl, isopropyl, butyl, isobutyl group, tert-butyl.
Further, formula (I) are as follows:
The preparation method of epimedium aglucone derivative of the present invention can be, but not limited to be made with the following method It is standby:
Method one: the R1And R3When taking identical group, steps are as follows:
1)
Epimedium aglucone (A) and R7-R8Addition reaction occurs and obtains compound 1；
2)
Compound 1 and L or halogenated R1Direct polycondensation generates formula (I) compound under the conditions of condensing agent；Or icariin First A in the presence of alkali, first replaces with halohydrin and generates intermediate, which is condensed generation with L under the conditions of condensing agent again Formula (I) compound.
Method two: the R1And R3When taking different groups, steps are as follows:
1) starting material B and R7-R8Addition reaction occurs and obtains compound 2；
2)
Compound 2 and L or halogenated R33 compound of direct polycondensation production under the conditions of condensing agent；Or B is in the presence of alkali, First replace with halohydrin and generate intermediate, which is condensed 3 compound of production with L again under the conditions of condensing agent；
3)
3 removing Boc protections in acid condition；Again with L or halogenated R1Reaction generates (I) under alkaline condition.
Wherein, the condensing agent is selected from 1- (3- dimethylamino-propyl) -3- ethyl-carbodiimide hydrochloride/4- dimethylamino Pyridine EDCI/DMAP, 1- (3- dimethylamino-propyl) -3- ethyl-carbodiimide hydrochloride/I-hydroxybenzotriazole/N, N- bis- are different Propylethylamine EDCI/HOBT/DIPEA, 2- (7- aoxidizes benzotriazole)-N, N, N', N'- tetramethylurea hexafluorophosphoric acid ester/N, One of N- diisopropylethylamine HATU/DIPEA, dicyclohexylcarbodiimide/4-dimethylaminopyridine DCC/DMAP；
The condensing agent dosage is 0.1-25 equivalent.
Yet another object of the invention is that a kind of pharmaceutical composition is provided, wherein containing epimedium aglucone of the present invention Derivative or its salt pharmacologically allowed.
Yet another object of the invention is that prepared by the salt for providing epimedium aglucone derivative and its pharmacologically allowing The purposes for treating asthma or bone marrow suppression aspect drug.
Epimedium aglucone derivative of the present invention is significantly better than epimedium aglucone for the therapeutic effect of asthma.The excessive sheep of the present invention Leaves of pulse plants aglycone derivative is significantly better than epimedium aglucone for the therapeutic effect of bone marrow suppression caused by radiotherapy or chemotherapy.The present invention is excessive The bioavilability of sheep leaves of pulse plants aglycone derivative is substantially better than epimedium aglucone, this shows the compound in the present invention in druggability side Face has apparent technical advantage.
Epimedium aglucone derivative of the present invention is significantly better than type I compound for the therapeutic effect of asthma.The excessive sheep of the present invention Leaves of pulse plants aglycone derivative is significantly better than type I compound for the therapeutic effect of bone marrow suppression caused by radiotherapy or chemotherapy.The present invention is excessive The bioavilability of sheep leaves of pulse plants aglycone derivative is substantially better than type I compound, this shows the compound in the present invention in druggability side Face has apparent technical advantage.More importantly long poison is experimental studies have found that type I compound has certain liver kidney poison Property leads to the side effects such as the female rats proliferation of mammary gland, and the compounds of this invention, compared to type I compound, faces without overt toxicity Bed is safe to use.
Type I compound is document (Dell'Agli M, Galli G V, Dal C E, et al.Potent inhibition of human phosphodiesterase-5by icariin derivatives.[J].Journal of Natural Products, 2008,71 (9): 1513-1517.) in compound 5.Type I compound structural formula is as follows:
Specific embodiment
The contents of the present invention are described in further detail below by way of the embodiment of specific embodiment.But it does not answer Embodiment is interpreted as limitation of the present invention.It is common according to this field in the case where not departing from appeal thought of the invention The various replacement means or change that technological know-how and conventional means are made, are all contained within the present invention.
Embodiment 1
Raw material epimedium aglucone (ICT) 500mg (1.4mmol) is dissolved in 20ml acetone, potassium carbonate 188mg is added (1.4mmol) and ethylene bromohyrin 0.1ml (1.4mmol), until the reaction is complete, vacuum distillation is spin-dried for solvent, ethyl acetate for reflux Dissolution, column chromatographic purifying obtain 1 378mg of yellow solid product intermediate, yield 61%.
1H NMR(300MHz,CDCl3): 12.44 (s, 1H), 8.13 (d, J=9.00Hz, 2H), 7.08 (d, J= 9.06Hz, 2H), 6.43 (s, 1H), 5.20 (q, J=15.53Hz, 1H), 4.20 (t, J=8.91Hz, 2H), 4.02 (m, 4H), 3.93 (s, 3H), 3.83 (m, 2H), 3.56 (d, J=6.72Hz, 2H), 1.82 (s, 3H), 1.72 (s, 3H) .ESI-MS (m/z): 479[M+Na]+.
The synthesis of 2 compound W-4 of embodiment.
1 456mg of intermediate (1mmol) is dissolved in 20ml methylene chloride, is added BOC- valine 217mg (1mmol), Carbodiimides (EDCI) 192mg (1mmol), 4-dimethylaminopyridine (DMAP) 122mg (1mmol), is stirred at room temperature 2h, reaction After completely, column chromatographic purifying obtains yellow solid product 632mg, yield 89%.
Above-mentioned gained yellow solid 632mg product is dissolved in 10ml methylene chloride, 139mg is added under stirring condition (1.39mmol) concentrated hydrochloric acid, is added dropwise and 20min is stirred at room temperature, and filters to obtain yellow solid W-4 520mg, total recovery 70%.
1H NMR(300MHz,CDCl3): 12.67 (s, 1H), 8.58 (s, 6H), 8.15 (d, J=9Hz, 2H), 7.13 (d, J =9Hz, 2H), 6.64 (s, 1H), 4.52-4.42 (m, 8H), 3.87 (s, 1H), 2.95 (d, J=9.24Hz, 2H), 2.21- 2.11(m,2H),1.99-1.89(m,2H),1.65(s,6H),1.00-0.91(m,6H).ESI-MS(m/z):691[M+H]+。
Embodiment 3
The boc-protected epimedium aglucone of raw material (Boc-ICT) 500mg (1.1mmol) is weighed to be placed in 100ml eggplant-shape bottle, 15ml methylene chloride is added as solvent, lower addition isopropyl isocyanate 0.14ml (1.65mmol) and triethylamine 32 is stirred at room temperature μ l (0.22mmol), back flow reaction.After fully reacting, column chromatographic purifying (petroleum ether: ethyl acetate=4:1) obtains yellow solid Product 450mg is subsequently placed in 100ml eggplant-shape bottle, and 15ml methylene chloride is added and is used as solvent, cooling in ice bath, addition trifluoro Acetic acid 5ml, after fully reacting, column chromatography for separation (petroleum ether: ethyl acetate=4:1) obtains yellow solid 340mg, yield 91%.
Above-mentioned gained yellow solid 340mg (0.75mmol) product is placed in 100ml eggplant-shape bottle, 20ml acetone is added and makees For solvent, ethylene bromohyrin 0.1ml (1.5mmol) and potassium carbonate 207mg (1.5mmol) is added, is reacted in 60 DEG C.Fully reacting Afterwards, it filters, filtrate is spin-dried for, and column chromatography for separation (petroleum ether: ethyl acetate=4:1) obtains 2 290mg of yellow solid intermediate, receives Rate 78%.
Embodiment 4
It weighs 2 450mg of intermediate to be placed in 100ml eggplant-shape bottle, 15ml methylene chloride is added as solvent, it is cold in ice bath But, trifluoroacetic acid 5ml is added, after fully reacting, column chromatography for separation obtains yellow solid, is subsequently placed in 100ml eggplant-shape bottle, adds Enter 20ml acetone as solvent, ethylene bromohyrin 0.1ml and potassium carbonate 207mg is added, is reacted in 60 DEG C.After fully reacting, filter, Filtrate is spin-dried for, and column chromatography for separation obtains yellow solid, is then dissolved in 10ml methylene chloride, and the dense salt of 139mg is added under stirring condition Acid is added dropwise and 20min is stirred at room temperature, and filters to obtain yellow solid W-4-1 363mg, total recovery 69%.
MS:534.3.
Influence of 5 the compounds of this invention of embodiment to bone marrow suppression caused by mice with tumor chemotherapy
1. model preparation and grouping administration: choosing Balb/C mouse 72, weighing is randomly divided into 6 groups, respectively normally Group, blank control group, icariin tuple, I group of formula, each administration group of the compounds of this invention, every group 12.The daily abdominal cavity note of mouse 50mg/kg cyclophosphamide is penetrated, platelet counts can be made to significantly reduce within continuous one week.Modeling start the last week each treatment group respectively to Give following therapeutic agents:
Normal group: giving isometric sodium carboxymethylcellulose；
Blank control group: isometric sodium carboxymethylcellulose is given；
Icariin tuple: 5mg/kg epimedium aglucone is given in stomach-filling；
I group of formula: 5mg/kg type I compound is given in stomach-filling；
W-4 group: 0.5mg/kg compound W-4 is given in stomach-filling；
W-4-1 group: 0.5mg/kg compound W-4-1 is given in stomach-filling；
Each treatment group is administered once a day, normal to feed.After successive administration 3 weeks, anesthetized mice takes blood, detects leucocyte And platelet counts, investigate influence of the compounds of this invention to leucocyte and blood platelet.
2. experimental result
Each compound of the invention causes the influence (table 1) of murine interleukin and blood platelet to send out cyclophosphamide through this embodiment Existing, each compound of the present invention has the effect of the bone marrow suppression that unexpected alleviation chemotherapy generates.
Compared with model control group, the total white blood cells and total number of blood platelet of each compound group of the present invention, which have, to be increased, and There is extremely significant sex differernce.
Compared with icariin tuple, the total white blood cells and total number of blood platelet of each compound group of the present invention increase, and have aobvious Write sex differernce.
Compared with I group of formula, the total white blood cells and total number of blood platelet of each compound group of the present invention increase, and have conspicuousness poor It is different.
Influence of each compound of table 1 to caused by cyclophosphamide leucocyte and decrease of platelet
Compared with blank control group,$P < 0.05,$$p<0.01；
Compared with icariin tuple,#P < 0.05,##p<0.01；
With I group of ratio of formula,&P < 0.05,&&p<0.01。
6 the compounds of this invention pair of embodiment60The influence of Co radiation mouse haemocyte quantity
1. model preparation and grouping administration: choosing kunming mice 90.In addition to normal group (10), other each group mouse into Row 4Gy irradiation60Co radiation, using disposable full-body exposure, absorbed dose 4Gy, absorbed dose rate 0.88Gy/min.In spoke After penetrating the 3rd, 7,10d difference socket of the eye venous blood sampling detect whole blood cells number.To leukocyte count in whole blood cells measurement twice in succession Amount is lower than 3.0 × 109/ L or platelet counts are less than 500 × 109The mouse of/L is picked out, and remaining mouse is laboratory mice.
The mouse for meeting requirement of experiment after irradiation is randomly divided into following model group, icariin tuple, I group of formula, W-4-1 Group, W-4 group, every group 10 groups, half male and half female.Each group is handled or is administered as follows respectively.
Normal group: giving isometric sodium carboxymethylcellulose；
Blank control group: isometric sodium carboxymethylcellulose is given；
Icariin tuple: intraperitoneal injection 1mg/kg epimedium aglucone；
I group of formula: intraperitoneal injection 1mg/kg type I compound；
W-4 group: intraperitoneal injection 0.1mg/kg compound W-4；
W-4-1 group: intraperitoneal injection 0.1mg/kg compound W-4-1；
Each treatment group is administered once a day, normal to feed.After successive administration 10 days, anesthetized mice takes blood, detects leucocyte And platelet counts, investigate influence of the compounds of this invention to leucocyte and blood platelet.
2. experimental result
Each compound of the invention is to receiving through this embodiment60The influence (table 2) of Co radiation murine interleukin and blood platelet It was found that each compound of the present invention has the effect of the unexpected bone marrow suppression alleviating radiotherapy and generating.
Compared with model control group, the total white blood cells and total number of blood platelet of each compound group of the present invention, which have, to be increased, and There is significant difference.
Compared with icariin tuple, the total white blood cells and total number of blood platelet of each compound group of the present invention increase, and have aobvious Write sex differernce.
Compared with I group of formula, the total white blood cells and total number of blood platelet of each compound group of the present invention increase, and have conspicuousness poor It is different.
Each compound pair of table 260The influence of Co radiation mouse haemocyte quantity
Compared with blank control group,$P < 0.05,$$p<0.01；
Compared with icariin tuple,#P < 0.05,##p<0.01；
With I group of ratio of formula,&P < 0.05,&&p<0.01。
Inhibiting effect of 7 the compounds of this invention of embodiment to airway smooth muscle
Airway Remodeling is the important pathological characters of bronchial asthma, and airway smooth muscle cells (ASMC) are to cause Airway Remodeling Main effects cell.Severe asthma patient is compared with normal people, and ASM C amount increased significantly, this phenomenon is mainly by smooth Caused by myocyte's hyperplasia.
1.1 material
150~200g SD rat；D M EM culture medium (Gibico company)；Fetal calf serum (the limited public affairs of Hangzhou Chinese holly Department)；Trypsase (Sigma company).
1.2 experimental method
1.2.1 the culture of rat A SM C
By the method for pertinent literature: aseptically, vertical shape splits tracheae, careful to remove outer membrane and gently strike off interior Tracheae section is carefully cut into lmm × 1mm × 1mm small tissue blocks with eye scissors, is affixed on the culture bottle bottom surface of 5cm × 5cm by film, Equidistant arrangement is added D M EM (high sugar) culture medium 2mL containing 25% fetal calf serum, culture solution is not made to contact tissue block.It will training Feeding bottom of bottle faces upward, and absolutely stands about 3h in the incubator of 37 DEG C and 5% carbon dioxide, turns over tissue block gently close to dry Turn culture bottle, so that culture solution was not had tissue block surface just, add culture solution to 5mL after the absolute stationary culture 3d of semi open model, Liquid is changed after 6d entirely, hereafter 3d is changed liquid 1 time.About 7d covers with rear secondary culture, and the 4th~5 generation cell is selected in experiment.The rat of culture ASM C is identified through morphological method.
1.2.2 the proliferation of CCK-8 method detection rat ASMC
The 4th generation rat ASMC for taking culture, is made single cell suspension, by 1 × 104A/hole is inoculated in 96 well culture plates, and 37 DEG C and 5% carbon dioxide under conditions of cultivate for 24 hours, when cell growth is in plocoid, the culture for containing 0.1% fetal calf serum is added Liquid (making cell growth arrest in 0 phase of G) continues culture for 24 hours.
It uses the culture solution containing 1% fetal calf serum instead, is randomly divided into:
DMEM is only added in control group, every hole；
Icariin tuple, epimedium aglucone concentration are 1 × 10-6mol/L；
I group of formula: type I compound concentration is 1 × 10-6mol/L；
W-4-1 group: compound W-4-1 concentration is 1 × 10-6mol/L；
W-4 group: compound W-4 concentration is 1 × 10-6mol/L；
5 multiple holes of every group of setting, while every group is respectively provided with blank group and (is free of cell, but DMEM concentration and respective sets are kept Unanimously).It giving after cultivating 48h under conditions of 37 DEG C and 5% carbon dioxide, 10 μ L of CCK-8 reagent is added in every hole, continue to cultivate 4h, At wavelength 450nm, each hole OD value is detected.According to the growth inhibition ratio of formula calculating group of cells: inhibitory rate of cell growth= 1- [(the corresponding blank group OD value of each administration group OD value -)/(the corresponding blank group OD value of control group OD value -)] × 100%.
2 results
The identification of 2.1 ASMC
It is observed with inverted phase contrast microscope, it is in shuttle shape that discovery ASMC, which does not converge preceding, and partial region cell is in after cell confluency Pencil arrangement, in typical " peak valley " shape.
The influence of 2.2 couples of ASMC proliferation
Each compound effects of the present invention are after ASMC 48h, and compared with icariin tuple, each compound group of the present invention is thin The OD value of born of the same parents is substantially reduced, and difference has conspicuousness.
Compared with icariin tuple cell, the inhibiting rate of the compounds of this invention group of cells is increased significantly, difference There is conspicuousness.
Compared with I group of cell of formula, the inhibiting rate of the compounds of this invention group of cells is increased significantly, and difference has conspicuousness (being shown in Table 3 and 4).
Each compound effects of table 3 are in the OD value of ASMC 48h
Compared with Normal group,$P < 0.05,$$p<0.01；
Compared with icariin tuple,#P < 0.05,##p<0.01；
With I group of ratio of formula,&P < 0.05,&&p<0.01。
Each compound effects of table 4 are in the inhibiting rate of ASMC 48h
Compared with icariin tuple,$P < 0.05,$$p<0.01；
With I group of ratio of formula,&P < 0.05,&&p<0.01。
The measurement of 8 the compounds of this invention bioavilability of embodiment
1. animal packet and administration
48 Wistar rat (270 ± 30) g, half male and half female, by Shandong Xinshidai Pharmaceutical Industry Co., Ltd. experimental animal The heart provides, production licence number: SCXK (Shandong) 20060019.At 20~22 DEG C of temperature, relative humidity 45%~65%, illumination/ It is raised under the conditions of dark 12h/12h, free diet, drinking-water.
The compounds of this invention gastric infusion group: female by healthy Wistar rat 24 of 12 hours free waters of fasting It is male fifty-fifty, it is divided into 4 groups, icariin tuple (epimedium aglucone is given in stomach-filling), I group of formula (type I compound is given in stomach-filling), W-4- 1 group (compound W-4-1 is given in stomach-filling), W-4 group (compound W-4 is given in stomach-filling).The administration of each group single oral gavage, dosage are 3mg/kg.12h fasting, free water before being administered.Before administration (0h), administration after 0.083,0.25,0.5,1,1.5,2, 3,4,6,8,12 and retroorbital venous clump takes 300 μ L of blood or so for 24 hours, anticoagulant heparin, it is centrifuged 5min under the conditions of 4 DEG C of 12000rpm, Separated plasma is stored in -20 DEG C of low temperature refrigerators.Free water during experiment, 2h is fed after stomach-filling.
The compounds of this invention intravenously administrable group: female by healthy Wistar rat 24 of 12 hours free waters of fasting It is male fifty-fifty, points 4 groups, icariin tuple (epimedium aglucone is given in injection), I group of formula (type I compound is given in injection), W-4-1 Group (compound W-4-1 is given in injection), W-4 group (compound W-4 is given in injection).The administration of each group tail vein injection, dosage For 3mg/kg.Before administration 0.033,0.083,0.25,0.5,1,1.5,2,3,4,6,8,12 and for 24 hours after (0h), administration Retroorbital venous clump takes 300 μ L of blood or so, anticoagulant heparin, is centrifuged 5min under the conditions of 4 DEG C of 12000rpm, separated plasma, be stored in- In 20 DEG C of low temperature refrigerators.Feed food and water freely during experiment.
2. plasma sample measures
UPLC-MS/MS quantitative analysis is carried out through processed plasma sample by all, measures plasma drug level.
3. the calculating of bioavilability
By the blood concentration-time data of measurement DAS software (Drug and Statistics, Chinese Mathematics pharmacology Association, the establishment such as Sun Ruiyuan) calculate pharmacokinetic parameters.The absolute bioavailability of each compound is calculated according to formula, t is last The sampling time of drug concentration can be surveyed.
4. the absolute bioavailability of each compound
The bioavilability of each compound of table 5
As can be seen from the above table, the bioavilability of each compound in the present invention is obviously higher than epimedium aglucone, formula I Compound, this shows that the compound in terms of the druggability in the present invention has apparent technical advantage.
9 the compounds of this invention of embodiment and type I compound rat duplicate injection administration toxicity test research
SD rat is divided into four groups: Normal group, type I compound group (are injected intravenously type I compound 100mg/kg/d), W- 4 groups (intravenous injection W-4 100mg/kg/d), W-4-1 group (intravenous injection W-4-1 100mg/kg/d).
It groups of animals successive administration 28 days, is administered once a day, is discontinued and restores 4 weeks.At the end of the administration phase, abdomen cardinal vein is adopted Collect blood sample, carries out the detection of the indexs such as hematology, clotting time, blood biochemical analysis and electrolyte, carry out Systematic anatomy later, greatly It causes to observe each organs and tissues form, it is (female to brain, spleen, thymus gland, heart, kidney (bilateral), liver, adrenal gland (bilateral), mammary gland Property rat), prostate (male rat) weighed and calculates organ coefficient.
Experiment discovery, type I compound group rat creatinine, alkaline phosphatase and NSC 334200 transfer enzyme level increase.Disease The visible different degrees of renal damage of histological examination is managed, apparent Nephrotoxicity occurs.The female rats proliferation of mammary gland.Formula I compound shows certain toxic side effect.
Under this experimental condition, do not find that abnormal change relevant to W-4 toxicity, W-4 drug administration by injection are clinical without overt toxicity Safety in utilization is higher.
Under this experimental condition, do not find abnormal change relevant to W-4-1 toxicity, W-4-1 drug administration by injection without overt toxicity, Clinical use safety is higher.

Claims (10)

1. a kind of epimedium aglucone derivative, shown in structure such as formula (I):
Or the pharmaceutically acceptable salt of formula (I) compound；
In formula (I), R1And R3Separately selected from hydrogen, the C replaced by amino, hydroxyl, carboxyl1-4Alkyl, L ,-(CH2)mOX, quilt C1-4Alkyl-substituted aminoacyl；
L is selected from hydrogen, glycine, alanine, valine, isoleucine, leucine, threonine, serine, glutamic acid, relies ammonia Acid ,-CO (CH2)mCOOH；
The halogen is selected from F, Cl, Br or I；
R7And R8Separately it is selected from hydrogen, halogen, hydroxyl, amino；
R1And R3The C for not taking H simultaneously or being replaced by amino, hydroxyl, carboxyl1-4Alkyl.
2. epimedium aglucone derivative as described in claim 1, which is characterized in that the L be selected from hydrogen, glycine, alanine, Valine, isoleucine, leucine, threonine, serine, glutamic acid, lysine.
3. epimedium aglucone derivative as described in claim 1, which is characterized in that formula (I) compound specifically:
4. the synthetic method of epimedium aglucone derivative as described in claim 1, which is characterized in that the R1And R3It takes identical Group, the synthesis step of formula (I) compound is as follows:
1)
Epimedium aglucone A and R7-R8Addition reaction occurs and obtains compound 1；
2)
Compound 1 and L or halogenated R1Direct polycondensation generates formula (I) compound under the conditions of condensing agent；Or epimedium aglucone A exists Under the action of alkali, first replace with halohydrin and generate intermediate, which is condensed under the conditions of condensing agent with L again generates formula (I) Compound.
5. the synthetic method of epimedium aglucone derivative as described in claim 1, which is characterized in that the R1And R3Take difference Group, the synthesis step of formula (I) compound is as follows:
3 removing Boc protections in acid condition；Again with L or halogenated R1Reaction generates (I) under alkaline condition.
6. the synthetic method of epimedium aglucone derivative as claimed in claim 5, which is characterized in that the R1And R3Take difference Group, the synthesis step of compound 3 is as follows:
Compound 2 and L or halogenated R33 compound of direct polycondensation production under the conditions of condensing agent；Or B is in the presence of alkali, first Replace with halohydrin and generate intermediate, which is condensed 3 compound of production with L again under the conditions of condensing agent.
7. the synthetic method of epimedium aglucone derivative as claimed in claim 6, which is characterized in that the R1And R3Take difference Group, the synthesis step of compound 2 is as follows:
Starting material B and R7-R8Addition reaction occurs and obtains compound 2；
8. the synthetic method of the epimedium aglucone derivative as described in claim 4-7 is any, which is characterized in that wherein, described Condensing agent is selected from 1- (3- dimethylamino-propyl) -3- ethyl-carbodiimide hydrochloride/4-dimethylaminopyridine EDCI/DMAP, 1- (3- dimethylamino-propyl) -3- ethyl-carbodiimide hydrochloride/I-hydroxybenzotriazole/N, N- diisopropylethylamine EDCI/ HOBT/DIPEA, 2- (7- aoxidizes benzotriazole)-N, N, N', N'- tetramethylurea hexafluorophosphoric acid ester/N, N- diisopropylethylamine One of HATU/DIPEA, dicyclohexylcarbodiimide/4-dimethylaminopyridine DCC/DMAP.
9. a kind of pharmaceutical composition includes epimedium aglucone derivative or its medicine described in any one of claim 1-3 claim The salt and pharmaceutically acceptable adjuvant allowed in Neo-Confucianism.
10. the purposes of pharmaceutical composition as claimed in claim 9 drug in terms of preparation treatment asthma or bone marrow suppression.
CN201810253109.4A 2018-03-26 2018-03-26 A kind of epimedium aglucone derivative and its preparation method and application Pending CN110357844A (en)

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