WO1992010461A1 - Procede de preparation de derives de l'acide dihydroxy-3,5 pentanoique - Google Patents
Procede de preparation de derives de l'acide dihydroxy-3,5 pentanoique Download PDFInfo
- Publication number
- WO1992010461A1 WO1992010461A1 PCT/FR1991/000989 FR9100989W WO9210461A1 WO 1992010461 A1 WO1992010461 A1 WO 1992010461A1 FR 9100989 W FR9100989 W FR 9100989W WO 9210461 A1 WO9210461 A1 WO 9210461A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon atoms
- radical
- mmol
- alkyl part
- phenyl
- Prior art date
Links
- 0 *C=C[C@](C[C@@](C*O*)N=O)O Chemical compound *C=C[C@](C[C@@](C*O*)N=O)O 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/31—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form
Definitions
- the present invention relates to a process for the selective preparation of syn derivatives of 3,5-dihydroxy pentanoic acid of general formula:
- - Z represents an alkoxy radical in which the alkyl part contains 1 to 4 carbon atoms, alkylthio in which the alkyl part contains 1 to 4 carbon atoms, amino, alkylamino in which the alkyl part contains 1 to 4 carbon atoms or amino dialkoyl ⁇ each alkyl part of which contains 1 to 4 carbon atoms
- - R represents either a radical R ..- Y- in which Y represents a radical -CH-CH ⁇ -, -CH ⁇ CH- or -C ⁇ C- and represents an aliphatic, alicy ⁇ tun, aromatic or heteroaromatic radical optionally substituted, ie a radical
- R2 represents a halogen atom or an alkoxy radical in which the alkyl part contains 1 to 4 carbon atoms, alkylthio in which the alkyl part contains 1 to 4 carbon atoms, arylthio, amino, monoalkylamino in which the alkyl part contains 1 to 4 carbon atoms or dialkoylamino of which each alkyl part contains 1 to 4 carbon atoms and R 3 represents a hydrogen atom or is identical to R ⁇ .
- R represents a radical R, -Y- in which Y represents a radical -CTL ⁇ L- or -CH ⁇ CH- and R, represents an alicyclic, aromatic or heteroaromatic radical which corresponds to that of the products of general formula ( I) in which Z represents an alkoxy radical or a hydroxy radical and corresponding lactones which inhibit the synthesis of cholesterol by inhibition of the enzyme HMG-CoA reductase and which are more particularly described in US patents US 4 375475, US 4474 971, US 4 613 610 and US 4 863 957, in international PCT applications WO 84/02903, WO 84/02131, WO
- titanium derivatives which are particularly suitable are the derivatives of formula THR ⁇ in which the symbols R ⁇ , identical or different, represent a halogen atom (chlorine) or a radical OR 'or OCOR "in which R 'represents an alkyl radical containing 1 to 4 carbon atoms.
- the titanium derivatives can optionally be prepared in situ by introducing into the reaction mixture the reagents necessary for their formation.
- titanium chlorotriisopropoxide (ClTi (Oift)
- ClTi titanium chlorotriisopropoxide
- 1.1 equivalent of borohydride or cyanoborohydride and from 1 to 1.1 equivalent of titanium derivative are used.
- the process is carried out in an organic solvent chosen from alcohols containing 1 to 4 carbon atoms, ethers such as tetrahydrofuran or their mixtures at a temperature between -30 and + 30 ° C.
- organic solvent chosen from alcohols containing 1 to 4 carbon atoms, ethers such as tetrahydrofuran or their mixtures at a temperature between -30 and + 30 ° C.
- cyanoborohydride it may be advantageous to add acetic acid to the solvent or to the mixture of solvents.
- the product of general formula (I) can be separated from the reaction mixture according to the usual techniques and it can be purified, for example by chromatography.
- R is defined as above and R. represents a radical alkyl containing 1 to 4 carbon atoms, on a product of general formula:
- the products of general formula (I) in which Z represents a hydroxy radical and the corresponding lactones can be obtained by saponification or hydrolysis of a product of general formula (I) in which Z represents an alkoxy, alkylthio, amino, alkylamino or dialkoylamino followed by cyclization into lactone, for example in the presence of an alkyl chloroformate and an organic base such as triethylamine.
- Z represents a hydroxy radical and the corresponding lactones
- the reaction mixture is taken up in 25 cm3 of dichloromethane. Washing is carried out with 10 cm3 of a saturated sodium bicarbonate solution and then with 10 cm3 of water. The organic phase is dried over sodium sulfate. After filtration and concentration to dryness, 210 mg of a product are obtained, the analysis of which by nuclear magnetic resonance of the proton shows that it consists of 95% of syn - [(4-fluoro-phenyl) -4-isopropyl-2- oxo-l-dihydro-1,2-quinolyl-3) -7-dihydroxy-3,5-heptene-6-methylate and 5% anti - [(4-fluoro phenyl) -4-isopropyl-2 -oxo-1-dihydro-1,2-heptene-6-methyl-oate.
- the basic aqueous phase is treated with 110 cm3 of heptane and 25 cm3 of glacial acetic acid (0.436 mole).
- the phases are separated and the organic phase is washed with 75 cm3 of water.
- the organic phase precipitates the acid (4-fluoro-3-methyl-phenyl) -2 tetramethyl-4,4,6,6 cyclohexene-1 yl-1) -7 dihy- droxy-3,5 heptene-6 which is separated by filtration and washed twice with 60 cm3 then 120 cm3 of heptane.
- 13.2 g of acid are obtained in the form of a white powder containing 97.3% of syn isomer.
- EXAMPLE 7 10 g of dimethoxy-6,6 hydroxy-5 oxo-3 tbutyl hexanoate (0.0381 mole) are dissolved in 400 cm 3 of methanol in a single-color flask. The solution is cooled to -20 ° C. and then 9.12 cm3 of titanium chlorotriisopropoxide (1 equivalent) are added, melted in a water bath at 60 ° C. The reaction medium is colored bright yellow. Maintained for 30 minutes at -20 ° C and then added, in one go, 1.1 equivalent of sodium cyanoborohydride. A gas evolution occurs at the same time as the slow dissolution of the reducing agent.
- Methyl 5-phenyl-5-hydroxy-3-oxo pentanoate can be prepared in the following manner:
- EXAMPLE 12 By operating as in Example 9 but starting from 1.0 g of 7-phenyl-5-hydroxy-3-oxo-heptene-6 tbutylate (3.42 mmol) and using 0.95 cm3 of chlorotriisopropoxide titanium (3.77 mmol), 261.8 mg of sodium cyanoborohydride (3.95 mmol), after 3 hours 10 minutes of reaction are obtained, with a yield of 55%, 550 mg of 7-phenyl dihydroxy- 3.5 heptene-6 tbutylate for which the syn / anti ratio is equal to 90/10.
- EXAMPLE 13 By operating as in Example 9 but starting with 530 mg of phenyl-7 hydroxy-5-3-oxo-heptene-6 thioate of St. butyl (17.3 mmol), 0.48 cm 3 of titanium chlorotriisopropoxide ( 1.9 mmol) and 127.4 mg of sodium cyanoborohyd.nire (1.92 mmol), 490 mg of phenyl-7 dihydro are obtained after 3 hours 20 minutes, with a yield of 92%. xy-3,5 heptene-6 S-tbutyl thioate for which the syn / anti ratio is equal to 80/20.
- a quantitative yield is obtained, 910 mg of 5-phenyl-5-hydroxy-3-oxo-6-heptene-6-thioate by operating under the conditions described above for the preparation of 5-phenyl-5-hydroxy-3-oxo-heptene- 6 methylate and using 155.8 mg of sodium hydride at 80% in 40 cm3 of tetrahydrofuran, 600 mg of S-tbutyl acetothioacetate, 213 cm3 of n.butyllitbium in solution in hexane at 1.6 moles / liter and 389 mg of cinnamic aldehyde (2.95 mmol).
- the N, N-diethyl-phenyl-5-hydroxy-5-oxo-3 pentanamide can be prepared as follows: 1.53 g of hydride are introduced into a three-necked flask provided with a septum and a dropping funnel 80% sodium (51.0 mmol) in 60 cm3 of tetrahydrofuran. Cool to -10 ° C and then slowly add 5.5 g of N, N-diethyl acetoacetamide 97% (34.0 mmol). We stir for 15 minutes. Then added slowly 21.25 cm3 of n.butyllithium in solution in hexane at 1.6 mol / liter and then stirred for 15 minutes.
- N, N-7-diethylphenyl-5-hydroxy-3-oxo-heptene-6 amide 1.83 mmol
- 370 mg of N, N-diethyl-phenyl-7 dihydroxy- are obtained with a yield of 70% 3.5 heptene-6 amide for which the syn / anti ratio is equal to 70/30.
- the N, N-diethyl phenyl-7 hydroxy-5-oxo-3 heptene-6 amide can be prepared in the following manner:
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4502512A JPH06503571A (ja) | 1990-12-11 | 1991-12-10 | 3,5−ジヒドロキシペンタン酸の誘導体類の製造方法 |
US08/074,827 US5347039A (en) | 1990-12-11 | 1991-12-10 | Process for the preparation of derivatives of 3,5-dihydroxypentanoic acid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9015469A FR2670206B1 (fr) | 1990-12-11 | 1990-12-11 | Procede de preparation de derives de l'acide dihydroxy-3,5 pentanouique. |
FR90/15469 | 1990-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992010461A1 true WO1992010461A1 (fr) | 1992-06-25 |
Family
ID=9403098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1991/000989 WO1992010461A1 (fr) | 1990-12-11 | 1991-12-10 | Procede de preparation de derives de l'acide dihydroxy-3,5 pentanoique |
Country Status (7)
Country | Link |
---|---|
US (1) | US5347039A (fr) |
EP (1) | EP0561985A1 (fr) |
JP (1) | JPH06503571A (fr) |
AU (1) | AU9142091A (fr) |
CA (1) | CA2098185A1 (fr) |
FR (1) | FR2670206B1 (fr) |
WO (1) | WO1992010461A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000018718A1 (fr) * | 1998-09-25 | 2000-04-06 | Lonza Ag | Procede de production d'esters d'acide 6,6-dialcoxy-5-hydroxy-3-oxocaproique |
US6486345B1 (en) | 1998-09-25 | 2002-11-26 | Lonza Ag | Method for producing 6,6-dialkoxy-5-hydroxy-3-oxo-hexanoic acid esters |
WO2003040082A1 (fr) * | 2001-10-24 | 2003-05-15 | Kaneka Corporation | Procede de production d'un derive d'acide 3,5-dihydroxycarboxylique optiquement actif |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1378501A1 (fr) * | 2002-07-02 | 2004-01-07 | Solvias AG | Hydrogénation diastéréosélective de bêta-hydroxycétones |
JP2004250428A (ja) * | 2002-07-02 | 2004-09-09 | Solvias Ag | 1,3−ヒドロキシケトンのジアステレオ選択的水素化 |
EP1378500A1 (fr) * | 2002-07-02 | 2004-01-07 | Solvias AG | Hydrogénation diastéréosélective de bêta-hydroxy cétones |
ES2323366T3 (es) * | 2003-04-22 | 2009-07-14 | Biocon Limited | Procedimiento novedoso para la reduccion estereoselectiva de beta-cetoesteres. |
CN108373411A (zh) * | 2017-12-16 | 2018-08-07 | 山东新华制药股份有限公司 | 高纯度4-氯-3-羟基丁酸乙酯的制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011928A1 (fr) * | 1978-10-30 | 1980-06-11 | Sankyo Company Limited | Dérivés d'ester de l'acide 3.5-dihydroxypentanoique à activité antihyperlipémique, leur préparation et compositions pharmaceutiques les contenant |
EP0164049A2 (fr) * | 1984-06-04 | 1985-12-11 | Merck & Co. Inc. | Procédé de préparation d'inhibiteurs de la HMG-CoA réductase contenant un élément 3,5-dihydroxypentanoique |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3860722A (en) * | 1972-09-22 | 1975-01-14 | Richardson Merrell Inc | Hypolipidemic agents |
US4650890A (en) * | 1984-04-03 | 1987-03-17 | Sandoz Corp. | Preparation of olefinic compounds and intermediates thereof |
US4777302A (en) * | 1986-08-20 | 1988-10-11 | Mitsubishi Chemical Industries Limited | Method for hydrogenating an aldehyde and/or a ketone |
US4837354A (en) * | 1987-02-26 | 1989-06-06 | Merrell Dow Pharmaceuticals Inc. | Process for making and isolating (R)-2-hydroxy-4-phenylbutyric acid and esters |
JPH064543B2 (ja) * | 1987-06-18 | 1994-01-19 | 高砂香料工業株式会社 | 光学活性アルコ−ルの製造法 |
WO1989003212A1 (fr) * | 1987-10-13 | 1989-04-20 | Pfizer Inc. | Acides 3,5-dihydroxy-6,8-non adienoiques et leurs derives en tant qu'agents hypocholesterolemiques |
US4912265A (en) * | 1988-08-26 | 1990-03-27 | Akzo America Inc. | Phase transfer catalyzed process for borohydride reductions of carbonyl compounds |
US5093363A (en) * | 1989-08-22 | 1992-03-03 | Shionogi & Co., Ltd. | 2,4,6-substituted phenol derivatives |
-
1990
- 1990-12-11 FR FR9015469A patent/FR2670206B1/fr not_active Expired - Fee Related
-
1991
- 1991-12-10 WO PCT/FR1991/000989 patent/WO1992010461A1/fr not_active Application Discontinuation
- 1991-12-10 JP JP4502512A patent/JPH06503571A/ja active Pending
- 1991-12-10 US US08/074,827 patent/US5347039A/en not_active Expired - Fee Related
- 1991-12-10 CA CA002098185A patent/CA2098185A1/fr not_active Abandoned
- 1991-12-10 AU AU91420/91A patent/AU9142091A/en not_active Abandoned
- 1991-12-10 EP EP92902157A patent/EP0561985A1/fr not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011928A1 (fr) * | 1978-10-30 | 1980-06-11 | Sankyo Company Limited | Dérivés d'ester de l'acide 3.5-dihydroxypentanoique à activité antihyperlipémique, leur préparation et compositions pharmaceutiques les contenant |
EP0164049A2 (fr) * | 1984-06-04 | 1985-12-11 | Merck & Co. Inc. | Procédé de préparation d'inhibiteurs de la HMG-CoA réductase contenant un élément 3,5-dihydroxypentanoique |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000018718A1 (fr) * | 1998-09-25 | 2000-04-06 | Lonza Ag | Procede de production d'esters d'acide 6,6-dialcoxy-5-hydroxy-3-oxocaproique |
US6486345B1 (en) | 1998-09-25 | 2002-11-26 | Lonza Ag | Method for producing 6,6-dialkoxy-5-hydroxy-3-oxo-hexanoic acid esters |
WO2003040082A1 (fr) * | 2001-10-24 | 2003-05-15 | Kaneka Corporation | Procede de production d'un derive d'acide 3,5-dihydroxycarboxylique optiquement actif |
US6998495B2 (en) | 2001-10-24 | 2006-02-14 | Kaneka Corporation | Method for producing optically active 3,5-dihydroxycarboxylic acid derivative |
Also Published As
Publication number | Publication date |
---|---|
FR2670206A1 (fr) | 1992-06-12 |
CA2098185A1 (fr) | 1992-06-11 |
EP0561985A1 (fr) | 1993-09-29 |
FR2670206B1 (fr) | 1993-01-22 |
US5347039A (en) | 1994-09-13 |
AU9142091A (en) | 1992-07-08 |
JPH06503571A (ja) | 1994-04-21 |
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