WO1998037042A1 - Procede de production d'isomeres de composes tricycliques a activite optique - Google Patents
Procede de production d'isomeres de composes tricycliques a activite optique Download PDFInfo
- Publication number
- WO1998037042A1 WO1998037042A1 PCT/JP1998/000694 JP9800694W WO9837042A1 WO 1998037042 A1 WO1998037042 A1 WO 1998037042A1 JP 9800694 W JP9800694 W JP 9800694W WO 9837042 A1 WO9837042 A1 WO 9837042A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mmol
- optically active
- hexane
- reaction
- added
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/93—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems condensed with a ring other than six-membered
- C07D307/935—Not further condensed cyclopenta [b] furans or hydrogenated cyclopenta [b] furans
Definitions
- the present invention relates to a process for producing cyclopentyl [b] benzofuran derivatives, for example, as a raw material for producing pharmaceuticals, especially 5,6,7-trinol 4,8-in-1m-phenylene PGI derivatives which are useful as antithrombotic agents.
- the present invention relates to a process for producing an optically active 3a, 8b-cis-dihydro-3H-cyclopentyl [b] benzofuran.
- optically active isomers of 3a, 8b-cis-dihydro-3H-cyclopentyl [b] benzofuran derivatives which are one of the tricyclic compounds
- 71 As described in Publication No. 1, [7-promote 3a, 8b-cis dihydro 3H-cyclopentyl [b] benzofuran-5-yl] formic acid was optically resolved using an optically active amine. Or by using an enzymatic reaction as described in J. Chem. Soc., Chem. Commun., 811, 1995. .
- a method for obtaining an optically active compound by asymmetric synthesis which is the simplest and direct method, has not yet been known.
- optical resolution method using an optically active amine is complex since a complex is formed and recrystallization is repeated.
- the substrate concentration is low, the time required for the reaction is long, and the reproducibility of the result is often not obtained due to the enzyme lot.
- an object of the present invention is to carry out asymmetric synthesis using an optically active alcohol or amine and obtain the following general formula (II)
- R,, R, Y, and ⁇ are hydrogen, halogen, alkyl, aryl, and w are Oxygen, sulfur, nitrogen, carbon, and n represent 0 to 4].
- the present inventors have proposed a cyclization reaction for directly synthesizing a 3cyclic compound, 3a, 8b-cis-hydro ⁇ 3H-cyclopentyl [b] benzofuran derivative (Nippon Tokuhei
- a target product having high optical purity can be obtained, and completed the present invention. That is, the present invention provides the following general formula (I)
- X represents a halogen
- R 2 , Y, and ⁇ represent hydrogen, halogen, an alkyl group, an aryl group
- W represents oxygen, sulfur, nitrogen, carbon
- ⁇ represents 0 to 4
- the present invention has the following configuration.
- X represents chlorine, bromine, or iodine
- R 2 , Y, and ⁇ independently represent hydrogen, fluorine, chlorine, bromine, Iodine, alkyl having 1 to 5 carbons, cycloalkyl having 3 to 8 carbons, cycloalkylalkyl having 4 to 9 carbons, cycloalkenyl alkyl having 5 to 10 carbons, aralkyl having 7 to 12 carbons, Alkenyl with 2 to 7 carbon atoms, aryl with 6 to 11 carbon atoms
- W is CR a R (R, R is the same as the definition of R t, R, Y, ⁇ ), 0, S, NR (R is the same as the definition of R !, R, ⁇ , Z), and n is a compound of 0-4.
- X represents chlorine, bromine, or iodine
- R,, R, Y, and ⁇ are independently hydrogen, alkyl having 1 to 5 carbons
- W is 0,
- It is 3,5-bis (aryloxy) cyclopentene where n is 1.
- This compound can be produced by a condensation reaction between 3,5-dibromocyclopentene and a metal salt of a phenol derivative, as described in JP-B-11-31494.
- the method for producing 3,5-bis (aryloxy) cyclopentene is not limited to this method.
- the reaction system when the compound represented by the general formula (I) thus obtained is dissolved in an organic solvent and a cyclization reaction is carried out using an organometallic reagent, the reaction system is provided with an optical system.
- an optically active tricyclic compound represented by the general formula (II) and intended for the present invention can be obtained.
- the organic solvent used herein include ether solvents such as getyl ether, tetrahydrofuran, 1,2-dimethoxetane and dioxane, and among them, tetrahydrofuran is preferable.
- the organic solvent is not limited to these.
- the weight of the organic solvent is usually 1 to 100 times the weight of the compound represented by the general formula (I).
- the organometallic reagent used for the cyclization reaction includes a Grignard reagent and an organolithium reagent, and an organolithium reagent is preferably used. Among them, methyllithium, n-butyllithium and phenyllithium are particularly used. However, in the present invention, the organometallic reagent is not limited to these.
- the organometallic reagent is generally used in an amount of 1 to 10 equivalents to the compound represented by the general formula (I).
- optically active alcohols and amines, or metal salts thereof pinaphthyl derivatives, 2-aminoethanol derivatives and alkyloids are preferably used.
- preferred optically active alcohols and amines include (R) —binaphthol, (S) —binaphthol, (R) —2-hydroxy—2′—methoxy1,1,1′—binaphthyl, (R ) — 2—Hydroxy 2 ′ — (Methoxymethyl) oxy-1,1, ′-binaphthyl, (R) — 2—Hydroxy 2 ′ —benzyloxy 1,1,1′-binaphthyl, (1S, 2R) —2 —Pyrrolidine—1,2-Diphenylethanol, (1R, 2S) —2-Pyrrolidine-1-1,2-Diphenylene Knol, cinchonine, cinchonidine and the like.
- alcohols and amines are not limited to these.
- an alkali metal salt such as lithium, sodium, and potassium is preferably used, and among them, the lithium salt is particularly preferably used.
- These alcohols, amines, and metal salts thereof are usually used in an amount of 0.0001 to 100 equivalents to the compound represented by the general formula (I).
- the reaction temperature in the present invention is usually from 120 to 100 ° C, preferably from 178 to 30.
- the reaction time is usually 5 minutes to 120 hours, preferably 0.5 to 5 hours.
- the reaction temperature and the reaction time are not limited to these.
- distillation or silica gel column chromatography is generally used, but is not particularly limited thereto. .
- optical purity of the optically active substance represented by the general formula (II) obtained by the above method is the optical purity of the optically active substance represented by the general formula (II) obtained by the above method.
- the production method of the present invention for directly obtaining an optically active substance by such a cyclization reaction is very simple because it does not require complicated operations such as optical resolution by salt formation. Further, in the present invention, since an enzymatic reaction which requires a large amount of solvent and a long reaction time and hardly obtains reproducibility is unnecessary, it can be applied to both an experimental production method and an industrial production method.
- an optically active substance of a tricyclic compound can be produced with high purity by adding an optically active alcohol, amine or a metal salt thereof.
- the production method according to the present invention does not require a complicated optical resolution operation, an enzymatic reaction that requires a large amount of solvent and a long reaction time, and does not easily provide reproducibility, and can be applied to both an experimental production method and an industrial production method. Very useful.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69817120T DE69817120T2 (de) | 1997-02-21 | 1998-02-19 | Verfahren zur herstellung optisch aktiver isomere von trizyklischen verbindungen |
EP98904392A EP0915073B1 (en) | 1997-02-21 | 1998-02-19 | Process for producing optically active isomers of tricyclic compounds |
US09/171,499 US6103914A (en) | 1997-02-21 | 1998-02-19 | Method of producing optically active material of tricyclic compound |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3725397 | 1997-02-21 | ||
JP9/37253 | 1997-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998037042A1 true WO1998037042A1 (fr) | 1998-08-27 |
Family
ID=12492490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/000694 WO1998037042A1 (fr) | 1997-02-21 | 1998-02-19 | Procede de production d'isomeres de composes tricycliques a activite optique |
Country Status (5)
Country | Link |
---|---|
US (1) | US6103914A (ja) |
EP (1) | EP0915073B1 (ja) |
CA (1) | CA2252378A1 (ja) |
DE (1) | DE69817120T2 (ja) |
WO (1) | WO1998037042A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023208837A1 (en) | 2022-04-26 | 2023-11-02 | Reuter Chemische Apparatebau E.K. | Oligomeric binaphthyl compounds and thermoplastic resins |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01279878A (ja) * | 1989-03-24 | 1989-11-10 | Toray Ind Inc | シクロペンタ[b]ベンゾフランの製造方法 |
JPH02200681A (ja) * | 1989-01-27 | 1990-08-08 | Toray Ind Inc | 3a,8b―シス―ジヒドロ―3H―シクロペンタ[b]ベンゾフランの製造法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59161371A (ja) * | 1983-03-04 | 1984-09-12 | Toray Ind Inc | (−)−〔7−ブロモ−3a,8b−シス−ジヒドロ−3H−シクロペンタ〔b〕ベンゾフラン−5−イル〕ギ酸の製造法 |
AU634213B2 (en) * | 1989-02-27 | 1993-02-18 | Toray Industries, Inc. | Preparation of 5,6,7-trinor-4,8-inter-m-phenylene pgi2 derivatives |
WO1994006785A1 (fr) * | 1992-09-18 | 1994-03-31 | Toray Industries, Inc. | Nouveau derive d'acide sulfonique et son usage medicinal |
CZ168896A3 (en) * | 1995-06-27 | 1997-01-15 | Egyt Gyogyszervegyeszeti Gyar | Oxaindene derivatives and process for preparing thereof |
-
1998
- 1998-02-19 CA CA002252378A patent/CA2252378A1/en not_active Abandoned
- 1998-02-19 WO PCT/JP1998/000694 patent/WO1998037042A1/ja active IP Right Grant
- 1998-02-19 EP EP98904392A patent/EP0915073B1/en not_active Expired - Lifetime
- 1998-02-19 US US09/171,499 patent/US6103914A/en not_active Expired - Fee Related
- 1998-02-19 DE DE69817120T patent/DE69817120T2/de not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02200681A (ja) * | 1989-01-27 | 1990-08-08 | Toray Ind Inc | 3a,8b―シス―ジヒドロ―3H―シクロペンタ[b]ベンゾフランの製造法 |
JPH01279878A (ja) * | 1989-03-24 | 1989-11-10 | Toray Ind Inc | シクロペンタ[b]ベンゾフランの製造方法 |
Non-Patent Citations (3)
Title |
---|
HOSOKAWA T., ET AL.: "OXIDATIVE CYCLIZATION OF 2-ALLYLPHENOLS BY PALLADIUM(II) ACETATE. CHANGES IN PRODUCT DISTRIBUTION.", THE JOURNAL OF ORGANIC CHEMISTRY, AMERICAN CHEMICAL SOCIETY, US, vol. 43., no. 14., 1 January 1978 (1978-01-01), US, pages 2752 - 2757., XP002912296, ISSN: 0022-3263, DOI: 10.1021/jo00408a004 * |
NISHIYAMA H., ET AL.: "METAL-HALOGEN EXCHANGE BETWEEN POLYBROMOANISOLES AND ALIPHATIC GRIGNARD REAGENTS: A SYNTHESIS OF CYCLOPENTAÚB¾BENZOFURANS.", JOURNAL OF ALLOYS AND COMPOUNDS., ELSEVIER SEQUOIA, LAUSANNE., CH, vol. 57., 1 January 1992 (1992-01-01), CH, pages 407 - 410., XP002912295, ISSN: 0925-8388 * |
See also references of EP0915073A4 * |
Also Published As
Publication number | Publication date |
---|---|
CA2252378A1 (en) | 1998-08-27 |
EP0915073B1 (en) | 2003-08-13 |
EP0915073A4 (en) | 2001-07-25 |
DE69817120T2 (de) | 2004-06-09 |
EP0915073A1 (en) | 1999-05-12 |
DE69817120D1 (de) | 2003-09-18 |
US6103914A (en) | 2000-08-15 |
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