WO2009146607A1 - A preparation method of (4s,5r)-semiester - Google Patents
A preparation method of (4s,5r)-semiester Download PDFInfo
- Publication number
- WO2009146607A1 WO2009146607A1 PCT/CN2009/000627 CN2009000627W WO2009146607A1 WO 2009146607 A1 WO2009146607 A1 WO 2009146607A1 CN 2009000627 W CN2009000627 W CN 2009000627W WO 2009146607 A1 WO2009146607 A1 WO 2009146607A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alcohol
- reaction
- alkyl
- carried out
- semiester
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/30—Oxygen or sulfur atoms
- C07D233/32—One oxygen atom
- C07D233/34—Ethylene-urea
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B53/00—Asymmetric syntheses
Definitions
- the present invention belongs to the field of organic chemistry, and is related to the preparation method of (4S 1 5R)-semiester by the use of 9-epiquininurea
- (4S 1 5R)-semiester represented by general formula (I) is the key intermediate to synthesize ( ⁇ )-biotin (vitamin H).
- the preparation of the compound includes chiral resolution method, chiral auxiliary method and asymmetric catalysis method.
- the resolution method was first reported by Gerecke et al. (HeIv Chim Acta, 1970, 53, 991) for preparation of racemic CAC monocyclohexanol ester via monoesterification between cycloanhydride (II) and cyclohexanol, then conduct direct enantiomorphous crystallization with pseudoephedrine and resolve to get desired (4S, 5R)-semiester (I).
- German patent 2058234, Chinese patent 106365, European patent 92194 and Chen Fen-Er et al. (Chemical Journal of Chinese Universities, 2001 , 12, 1141) respectively reported preparation of (4S, 5R)-semiester represented by general formular (I) using dehydroabietylamine, substituted chiral diphenyl ethamine and Chloromycetin by product (1S,2S)-threo-1-(p- nitrophenyi)-1 ,3-propanediol as resolution agent.
- those resolution methods have disadvantages of high price, insufficient raw material resource, poor resolution efficiency and uneasy recovery.
- the aim of the said invention is to overcome the disadvantages of existing technology and provide a preparation method of (4S 1 5R)-semiester represented by general formular (I) with moderate conditions, high yield and high stereoselectivity.
- the said invention conducts enantioselective ring-opening between cycloanhydride (II) and alcohol with presence of 9-epiquininurea to prepare (4S, 5R)-semiester represented by general formular (I) with yield >95% and e.e.>98%.
- the synthetic route is as follows:
- R 1 is hydrogen, Ci-C 6 alkyl, phenyl, alkyl substituted phenyl or alkoxyl substituted phenyl
- Ar is phenyl, alkyl substituted phenyl or alkoxyl substituted phenyl, nitro-substituted phenyl, phenyl halide, thienyl, furyl or naphthyl
- R 2 is Ci ⁇ C ⁇ alkyl, C 3 -Ce naphthene, C 2 ⁇ C ⁇ alkenyl, aralkyl oraralkenyl.
- catalyst 9-epiquininurea has structure as indicated in Formular A. It enables the performance of reaction at room temperature and preparation of (4S, 5R)-semiester represented by general formular (I) with high yield and high stereoselectivity. Besides, the said chiral catalyst has convenient synthesis, wide availability of raw materials, and can be quantitatively recovered, which is liable for industrialized production.
- R 3 is hydrogen, C 1 -C 6 alkyl, C 2 -C 6 alkenyl or C 2 -C 6 alkynyl
- R 4 is hydrogen, CrC 6 alkyl, C 2 ⁇ C 6 alkenyl, C 2 -C 8 alkynyl, C 3 -C 6 naphthene, aryl or substituted derivative of any above-mentioned group
- R 5 is -H or -OR 6
- R 6 is Ci-C 6 alkyl, C 3 -C 6 naphthene, C 2 -C 6 alkenyl, C 2 -C 6 acyl, benzyl, benzoyl, cinnamyl or substituted derivative of any above-mentioned group
- Z is O, S or Se.
- the alcohol used is Ci-C 6 alkanol, C 3 ⁇ C 6 naphthenic alcohol, C 2 -C 6 enol, aralkyl alcohol, arenol or substituted derivative of any above-mentioned alcohol, such as methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, cyclohexanol, allyl alcohol, benzyl alcohol, cinnamyl alcohol etc. for asymmetric monoesterification. Those alcohols are cheap and easily available.
- the used organic solvent includes halohydrocarbon (e.g.
- aliphatic hydrocarbon e.g. hexane, heptane, octane, nonane, acetonitrile, ethyl acetate etc.
- arene e.g. benzene
- reaction can be smoothly completed.
- Control reaction temperature at -15°C ⁇ 50°C, reaction time at 4 ⁇ 80hrs for reaction completion.
- the preferred chiral catalyst is 9-epiquininurea (A) with vinyl as R 3 ; -OR 5 as R 4 , methyl as R 5 , S atom as Z.
- the cataiyst has advantages of convenient synthesis, wide raw material resource and easy recovery.
- the alcohol used is methanol, which is widely available with low price.
- the mol ratio among cycloanhydride (ll)/alcohol/chiral catalyst is preferred at 1:3-10:0.01-1.1.
- the preferred reaction temperature is at 0 ⁇ 25°C.
- the preferred reaction time is at 10 ⁇ 36hrs.
- the preferred organic solvent is MTBE, which is environmental friendly, widely available with low price.
- the said invention has moderate reaction conditions, easy operation, and cheap raw materials with easy availability. What's more, the obtained product has high yield and high stereoselectivity and the catalyst can be quantitatively recovered and recycled. So, the catalyst has low cost and is suitable for industrialized production.
- Catalyst recovery adjust the separated aqueous layer of hydrochloric acid with 20% NaOH solution to pH 14. Filter the isolated white solid, dry to quantitatively recover catalyst.
- transfer cis-1 ,3-dibenzylimidazoline-2-one-2H -furan[3,4-d]imidazole- 2,4,6-trione (33.6g, O.IOmol)
- 1,4-dioxane (4L) 1 drop anhydrous methanol (40.4mL, 1.Omol) at 25 0 C, then continuously stir for 24hrs.
- transfer cis-1 ,3-dibenzyIimidazoline-2-one-2H- furan[3,4-d]imidazole- 2,4,6-trione (33.6g, O.IOmol)
- THF 4L
- drop anhydrous methanol 40.4mL, LOmol
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011511956A JP2011523654A (en) | 2008-06-05 | 2009-06-05 | Method for preparing (4S, 5R) -half ester |
US12/996,078 US20110137046A1 (en) | 2008-06-05 | 2009-06-05 | Preparation method of (4s,5r)-semiester |
EP09757041A EP2294054A4 (en) | 2008-06-05 | 2009-06-05 | A preparation method of (4s,5r)-semiester |
CN2009801207800A CN102282135A (en) | 2008-06-05 | 2009-06-05 | A preparation method of (4s,5r)-semiester |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810038584.6 | 2008-06-05 | ||
CNA2008100385846A CN101284832A (en) | 2008-06-05 | 2008-06-05 | Preparation method of (4S, 5R)- half-ester |
CN200810042506A CN101665461A (en) | 2008-09-04 | 2008-09-04 | Method for preparing (4S, 5R)-half-ester |
CN200810042506.3 | 2008-09-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009146607A1 true WO2009146607A1 (en) | 2009-12-10 |
Family
ID=41397715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2009/000627 WO2009146607A1 (en) | 2008-06-05 | 2009-06-05 | A preparation method of (4s,5r)-semiester |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110137046A1 (en) |
EP (1) | EP2294054A4 (en) |
JP (1) | JP2011523654A (en) |
KR (1) | KR20110017378A (en) |
CN (1) | CN102282135A (en) |
WO (1) | WO2009146607A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114634515A (en) * | 2022-02-25 | 2022-06-17 | 复旦大学 | Stereoselective synthesis method of (3aS,6aR) -lactone |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101157655A (en) * | 2007-09-20 | 2008-04-09 | 复旦大学 | Method for synthesizing (4S,5R)- half-ester |
CN101284832A (en) * | 2008-06-05 | 2008-10-15 | 复旦大学 | Preparation method of (4S, 5R)- half-ester |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4400749A1 (en) * | 1994-01-13 | 1995-07-20 | Bayer Ag | New highly enantioselective process for the production of enantiomerically pure cyclopentane and pentene beta amino acids |
CH694730A5 (en) * | 2000-02-09 | 2005-06-30 | Sumitomo Chemical Co | A process for producing optically active hemiester. |
CN1183137C (en) * | 2003-04-16 | 2005-01-05 | 复旦大学 | Synthesis method of [3aS, 6aR]-1,3-dibenzyl-tetrahydro-4H-fruo [3,4-d]-imidazolyl-2,4 [1H]-diketone [I] |
SG180022A1 (en) * | 2003-06-17 | 2012-05-30 | Schering Corp | Process and intermediates for the preparation of (1r,2s,5s)-6,6-dimethyl-3-azabicyclo[3,1,0]hexane-2-carboxylates or salts thereof |
WO2006130453A1 (en) * | 2005-05-27 | 2006-12-07 | Brandeis University | Asymmetric aldol additions using bifunctional cinchona-alkaloid-based catalysts |
WO2006130437A2 (en) * | 2005-05-27 | 2006-12-07 | Brandeis University | Asymmetric carbon-carbon-bond-forming reactions catalyzed by bifunctional cinchona alkaloids |
-
2009
- 2009-06-05 US US12/996,078 patent/US20110137046A1/en not_active Abandoned
- 2009-06-05 KR KR1020107027236A patent/KR20110017378A/en not_active Application Discontinuation
- 2009-06-05 JP JP2011511956A patent/JP2011523654A/en active Pending
- 2009-06-05 CN CN2009801207800A patent/CN102282135A/en active Pending
- 2009-06-05 WO PCT/CN2009/000627 patent/WO2009146607A1/en active Application Filing
- 2009-06-05 EP EP09757041A patent/EP2294054A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101157655A (en) * | 2007-09-20 | 2008-04-09 | 复旦大学 | Method for synthesizing (4S,5R)- half-ester |
CN101284832A (en) * | 2008-06-05 | 2008-10-15 | 复旦大学 | Preparation method of (4S, 5R)- half-ester |
Non-Patent Citations (2)
Title |
---|
See also references of EP2294054A4 * |
WU, Q. ET AL.: "Application of chiral (thio)urea derivatives in asymmetric organocatalysis.", CHINESE JOURNAL OF ORGANIC CHEMISTRY, vol. 27, no. 12, 2007, pages 1491 - 1501, XP008146365 * |
Also Published As
Publication number | Publication date |
---|---|
US20110137046A1 (en) | 2011-06-09 |
EP2294054A4 (en) | 2012-04-18 |
JP2011523654A (en) | 2011-08-18 |
EP2294054A1 (en) | 2011-03-16 |
CN102282135A (en) | 2011-12-14 |
KR20110017378A (en) | 2011-02-21 |
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