WO2012155796A1 - 一种定向合成维甲酸类化合物的方法 - Google Patents
一种定向合成维甲酸类化合物的方法 Download PDFInfo
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- WO2012155796A1 WO2012155796A1 PCT/CN2012/075130 CN2012075130W WO2012155796A1 WO 2012155796 A1 WO2012155796 A1 WO 2012155796A1 CN 2012075130 W CN2012075130 W CN 2012075130W WO 2012155796 A1 WO2012155796 A1 WO 2012155796A1
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000015572 biosynthetic process Effects 0.000 title abstract description 6
- 238000003786 synthesis reaction Methods 0.000 title abstract description 5
- 150000004508 retinoic acid derivatives Chemical class 0.000 title abstract 3
- 230000000707 stereoselective effect Effects 0.000 title abstract 2
- 238000006317 isomerization reaction Methods 0.000 claims abstract description 44
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 238000007239 Wittig reaction Methods 0.000 claims abstract description 19
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical class C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- VXAWORVMCLXEKH-RQOWECAXSA-N (z)-3-methyl-4-oxobut-2-enoic acid Chemical class O=CC(/C)=C\C(O)=O VXAWORVMCLXEKH-RQOWECAXSA-N 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 150000003284 rhodium compounds Chemical class 0.000 claims abstract description 3
- 150000002941 palladium compounds Chemical class 0.000 claims abstract 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 27
- 150000001875 compounds Chemical class 0.000 claims description 22
- 239000002253 acid Substances 0.000 claims description 18
- 101150003085 Pdcl gene Proteins 0.000 claims description 14
- -1 2,6,6-trimethylcyclohexenyl Chemical group 0.000 claims description 13
- 238000006460 hydrolysis reaction Methods 0.000 claims description 10
- 230000007062 hydrolysis Effects 0.000 claims description 9
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims description 8
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- 239000002585 base Substances 0.000 claims description 4
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 claims description 4
- 150000003304 ruthenium compounds Chemical class 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 125000002837 carbocyclic group Chemical group 0.000 claims description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 2
- 150000004692 metal hydroxides Chemical class 0.000 claims description 2
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 claims 3
- 101100351302 Caenorhabditis elegans pdf-2 gene Proteins 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 19
- 239000003513 alkali Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000013067 intermediate product Substances 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000012295 chemical reaction liquid Substances 0.000 abstract 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- 238000002360 preparation method Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 8
- SHGAZHPCJJPHSC-YCNIQYBTSA-N all-trans-retinoic acid Chemical class OC(=O)\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C SHGAZHPCJJPHSC-YCNIQYBTSA-N 0.000 description 7
- 238000004128 high performance liquid chromatography Methods 0.000 description 7
- 229930002330 retinoic acid Natural products 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 5
- 150000001735 carboxylic acids Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229960001727 tretinoin Drugs 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 208000002874 Acne Vulgaris Diseases 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 201000004681 Psoriasis Diseases 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229960000583 acetic acid Drugs 0.000 description 2
- 229960005339 acitretin Drugs 0.000 description 2
- 206010000496 acne Diseases 0.000 description 2
- IHUNBGSDBOWDMA-AQFIFDHZSA-N all-trans-acitretin Chemical compound COC1=CC(C)=C(\C=C\C(\C)=C\C=C\C(\C)=C\C(O)=O)C(C)=C1C IHUNBGSDBOWDMA-AQFIFDHZSA-N 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- SIKJAQJRHWYJAI-UHFFFAOYSA-N benzopyrrole Natural products C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 1
- 125000004452 carbocyclyl group Chemical group 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 1
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- JILPJDVXYVTZDQ-UHFFFAOYSA-N lithium methoxide Chemical compound [Li+].[O-]C JILPJDVXYVTZDQ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- RPGWZZNNEUHDAQ-UHFFFAOYSA-N phenylphosphine Chemical class PC1=CC=CC=C1 RPGWZZNNEUHDAQ-UHFFFAOYSA-N 0.000 description 1
- RPDAUEIUDPHABB-UHFFFAOYSA-N potassium ethoxide Chemical compound [K+].CC[O-] RPDAUEIUDPHABB-UHFFFAOYSA-N 0.000 description 1
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- WQKGAJDYBZOFSR-UHFFFAOYSA-N potassium;propan-2-olate Chemical compound [K+].CC(C)[O-] WQKGAJDYBZOFSR-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 150000002266 vitamin A derivatives Chemical class 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
- C07C403/20—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by carboxyl groups or halides, anhydrides, or (thio)esters thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/353—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by isomerisation; by change of size of the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
Definitions
- the present invention relates to a method for the directed synthesis of a retinoid compound, and more particularly to a method for synthesizing a class of retinoic acid compounds having a conjugated unsaturated carboxylic acid, a substituted unsaturated six-membered carbocyclic ring, and a plurality of conjugated double bonds in the structure.
- Retinoic acid is a metabolite of vitamin A and is widely used clinically to treat psoriasis and acne with remarkable effects.
- all-trans retinoic acid (formula la)
- various other compounds similar in structure have been developed: eg, iso-dimensional A (formula Ib), acitretin A (formula Id), alitretic acid (formula Ic) Etc., also used to treat skin diseases such as psoriasis and acne.
- the common feature of these retinoids is that they contain conjugated unsaturated carboxylic acids, substituted unsaturated six-membered carbon rings, and many more in the structure.
- both retinoic acid (formula la) and avicin A (form Id) are 2, 4, 6, 8-all-trans configuration; iso-dimensional A (formula lb) is 2-cis, 4-trans, 6 - trans, 8-trans configuration; aliviric acid (formula Ic) is a 2-trans, 4-trans, 6-cis, 8-trans configuration.
- the preparation method of the "conjugated unsaturated carboxylic acid" group in the retinoic acid compound is usually obtained by hydrolyzing the corresponding ester.
- the hydrolysis process exacerbates the diversification of the stereo configuration of the product, and other impurities are generated, which complicates the post-treatment.
- the column method is not only cumbersome, but also has a low yield.
- the preparation of all-trans retinoic acid in DE 1059900 is as follows: [3-methyl_5_(2,6-6-trimethylcyclohexen-1-yl)-2,4-pentadiene]-three
- the phenylphosphine salt (formula II a) and ⁇ -formyl crotonate (formula IV) are used as raw materials, after WITTIG reaction, alkali hydrolysis, acidification after hydrolysis, extraction, recrystallization twice, to 25-30%
- This method has many steps and is cumbersome; and because of the formation of various cis isomers in the WITTIG reaction and the hydrolysis reaction, the yield is low.
- the object of the present invention is to find a process for preparing a compound of the formula I which is low in cost, high in yield, small in number of steps, simple and easy to industrially produce.
- the preparation method of the compound of the formula I provided by the invention is as follows: using the substituted triphenylphosphine salt (formula II) and ⁇ -formyl crotonic acid (formula III) as raw materials, the WITTIG reaction occurs under the action of a base; The indole compound is subjected to an isomerization reaction to give a compound of formula I in the desired configuration:
- A is 2,6,6-trimethylcyclohexenyl or 2,3,6-trimethyl-4-methoxyphenyl.
- the WITTIG reaction occurs in formula II and formula III, i.e., the conversion of the carbonyl group of formula III to a carbon-carbon double bond is attached to formula II.
- the temperature of the WITTIG reaction is -50 to 30 ° C, and the reaction temperature is preferably _5 to 5 °C.
- the reaction time of the WITTIG reaction is 1 to 24 hours, and the preferred reaction time is 3 to 4 hours.
- the base may be an alkali metal salt or a metal hydroxide of a -C 6 alkanol such as sodium methoxide, potassium methoxide, lithium methoxide, sodium ethoxide, potassium ethoxide or potassium isopropoxide, as long as the reaction system is basic.
- the inventors have found through experiments that before the isomerization, the pH value of the reaction system is extremely important for the conversion of the next isomerization, and the pH value is too low to affect the transformation, too high and easily generate impurities. Therefore, controlling the pH range at this step is the key to increasing the conversion rate and achieving high yields of the product.
- the desired pH Prior to isomerization, the desired pH can be tightly controlled by the addition of acid.
- the acid is an inorganic acid or an organic acid, wherein the inorganic acid is selected from the group consisting of sulfuric acid, hydrochloric acid, phosphoric acid, hydrobromic acid, etc.; the organic acid is an alkyl acid of dC 6 such as formic acid, acetic acid, propionic acid, butyric acid, etc., preferably hydrochloric acid.
- the amount of the acid is adjusted to adjust the pH of the reaction system to 5 to 10, preferably pH 7 to 8.
- the catalyst is a palladium or rhodium compound selected from the group consisting of PdCl 2 , PdBr 2 , Pdl 2 , PdF 2 , PdS, (CH 3 CN) 2 PdCl 2 , Pd(OAc) 2 , (PhCN) 2 PdCl 2 , Pd (N0 3 4 (NH 4 ) 2 , Pd(NH 3 ) 2 Cl 2 ,, PdS 2 ,, K 2 PdCl 6 , Pd(NH 3 ) 2 (N0 2 ) 2 , Pd(N0 2 )4(NH 3 ) 2 , (PhCN) 2 PdBr 2 , (NH 4 ) 2 PdCl 4 , (NH 4 ) 2 PdCl 6 , (Ph 3 P) 4 Pd(0), (Et 3 P) 4 Pd(0), (Ph 3 P 3 PdCl 2 , Pd(N0 3 ) 2 +Ph 3 P
- the temperature of isomerization also has an effect on the isomerization reaction, the temperature is low, and the isomerization rate is slow; the temperature is high, the isomerization speed is fast, but the impurities are easily increased.
- the preferred isomerization temperature is from 30 ° C to 80 ° C, more preferably from 50 ° C to 60 ° C.
- the time for isomerization is not particularly limited, and the reaction can be monitored by a high performance liquid chromatography (HPLC) method until the isomerization reaction is completed.
- HPLC high performance liquid chromatography
- the standard is that the relative proportion of non-isomerized materials is less than 3% by HPLC.
- HPLC high performance liquid chromatography
- reaction mixture can be poured into water, neutralized with acid, and filtered by suction to obtain a crude product.
- the method for preparing the compound of the formula I provided by the invention has the advantages of short steps, simple operation, low cost, high total yield and high production efficiency, and can meet the needs of large-scale production.
- A is 2,6,6-trimethylcyclohexenyl: US3932485, EP0659739;
- A is 4-methoxy-2,3,6-trimethylphenyl: Helvetica Chimica Acta, 1989, vol. 72, p370_376.
- Formula III when Formula III is trans: Aladdin Reagent Co., Ltd., or according to the method of CN101987840A; when Formula III is cis: it can be obtained according to the method of Journal of the American Chemical Society, 1956, vol. 78, p808.
- reaction results were determined by high performance liquid chromatography (HPLC). After the completion of the isomerization reaction, the reaction mixture was poured into water, neutralized with concentrated hydrochloric acid, and filtered to give the crude product of title product. 3% ⁇ The yield of 95. 3%, the yield of 85. 3%. Examples 2 to 9 were carried out in the same manner as in Example 1, except that various reaction conditions were changed to compare the reaction results.
- Example 2 3 and pH comparison test examples 1, 2 - different isomerization pH conditions
- Example 1 The operation method described in Example 1 was carried out except that the type of the catalyst was changed, and the results obtained are as follows:
- Example 1 The operation method described in Example 1 was carried out except that the temperature of the isomerization reaction was changed, and the results obtained are as follows: Temperature (°c) Product purity (%) Yield (%) Example 1 50 99. 7 85. 3 Implementation Example 8 30 99. 5 84. 3 Example 9 60 99. 5 85. 1 Example 10 70 99. 3 82. 4 Temperature comparison test example 90 98. 9 70. 5 Conclusion: The suitable temperature for the isomerization reaction is 50 to 70 ° C. Example 11
- R is C r C
- Document CN101774954 A method can solve the problem of stereoisomer purity of the product, and obtain the desired product of all-trans.
- steps in the method there are many steps in the method, and there is an intermediate separation step, which is complicated in operation, requires more man-hours, and causes product loss.
- hydrolysis step it is time consuming and incomplete, so the cost is high, and the total yield can only reach 75%.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2012255352A AU2012255352B2 (en) | 2011-05-13 | 2012-05-07 | Stereospecific synthesis process for tretinoin compounds |
US14/117,343 US8835680B1 (en) | 2011-05-13 | 2012-05-07 | Stereospecific synthesis process for tretinoin compounds |
EP12786430.4A EP2708530B1 (en) | 2011-05-13 | 2012-05-07 | Stereospecific synthesis process for tretinoin compounds |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201110124227.3A CN102775338B (zh) | 2011-05-13 | 2011-05-13 | 全反式维甲酸合成方法 |
CN201110124227.3 | 2011-05-13 |
Publications (1)
Publication Number | Publication Date |
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WO2012155796A1 true WO2012155796A1 (zh) | 2012-11-22 |
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PCT/CN2012/075130 WO2012155796A1 (zh) | 2011-05-13 | 2012-05-07 | 一种定向合成维甲酸类化合物的方法 |
Country Status (5)
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US (1) | US8835680B1 (zh) |
EP (1) | EP2708530B1 (zh) |
CN (1) | CN102775338B (zh) |
AU (1) | AU2012255352B2 (zh) |
WO (1) | WO2012155796A1 (zh) |
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WO2016042573A1 (en) | 2014-09-17 | 2016-03-24 | Emcure Pharmaceuticals Limited | Process for preparation of acitretin |
CN111423348A (zh) * | 2020-04-26 | 2020-07-17 | 上海新华联制药有限公司 | 一种异维a酸及其制备方法和应用 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1059900B (de) | 1957-09-03 | 1959-06-25 | Basf Ag | Verfahren zur Herstellung von Verbindungen der Vitamin A-Reihe |
US3932485A (en) | 1974-08-28 | 1976-01-13 | Hoffmann-La Roche Inc. | Improved preparation of Wittig salt of vinyl β-ionol |
US4215215A (en) | 1975-08-01 | 1980-07-29 | Hoffmann-La Roche Inc. | 9-Phenyl-nonate traene compounds |
EP0659739A1 (de) | 1993-12-23 | 1995-06-28 | BASF Aktiengesellschaft | Verfahren zur Herstellung von 9-(Z)-Retinsäure |
CN1771227A (zh) * | 2003-04-11 | 2006-05-10 | 霍夫曼-拉罗奇有限公司 | 制造9-顺式视黄酸的方法 |
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Cited By (4)
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CN104086472A (zh) * | 2014-06-17 | 2014-10-08 | 重庆华邦胜凯制药有限公司 | 一种制备13-顺维甲酸的方法 |
WO2016042573A1 (en) | 2014-09-17 | 2016-03-24 | Emcure Pharmaceuticals Limited | Process for preparation of acitretin |
CN111423348A (zh) * | 2020-04-26 | 2020-07-17 | 上海新华联制药有限公司 | 一种异维a酸及其制备方法和应用 |
CN111423348B (zh) * | 2020-04-26 | 2021-10-22 | 上海新华联制药有限公司 | 一种异维a酸及其制备方法和应用 |
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AU2012255352B2 (en) | 2015-07-23 |
EP2708530A4 (en) | 2014-12-31 |
US8835680B1 (en) | 2014-09-16 |
CN102775338A (zh) | 2012-11-14 |
EP2708530A1 (en) | 2014-03-19 |
EP2708530B1 (en) | 2016-08-10 |
CN102775338B (zh) | 2016-09-21 |
US20140275617A1 (en) | 2014-09-18 |
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