WO2007098651A1 - UTILISATION DE POLY-3-HYDROXYALCANOATES POUR LA PRÉPARATION DE COMPOSÉS DE β-LACTAME - Google Patents
UTILISATION DE POLY-3-HYDROXYALCANOATES POUR LA PRÉPARATION DE COMPOSÉS DE β-LACTAME Download PDFInfo
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- WO2007098651A1 WO2007098651A1 PCT/CN2006/002707 CN2006002707W WO2007098651A1 WO 2007098651 A1 WO2007098651 A1 WO 2007098651A1 CN 2006002707 W CN2006002707 W CN 2006002707W WO 2007098651 A1 WO2007098651 A1 WO 2007098651A1
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- Prior art keywords
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- -1 β-LACTAM COMPOUNDS Chemical class 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- WRJWRGBVPUUDLA-UHFFFAOYSA-N chlorosulfonyl isocyanate Chemical compound ClS(=O)(=O)N=C=O WRJWRGBVPUUDLA-UHFFFAOYSA-N 0.000 claims description 5
- 239000012467 final product Substances 0.000 claims description 5
- 238000005837 enolization reaction Methods 0.000 claims description 4
- HETCEOQFVDFGSY-UHFFFAOYSA-N Isopropenyl acetate Chemical compound CC(=C)OC(C)=O HETCEOQFVDFGSY-UHFFFAOYSA-N 0.000 claims description 3
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical class Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 claims description 3
- 229940079827 sodium hydrogen sulfite Drugs 0.000 claims description 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 3
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 claims description 2
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 10
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 239000012074 organic phase Substances 0.000 description 6
- 239000007858 starting material Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 4
- 235000019439 ethyl acetate Nutrition 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- AFIKGLAMEXCVAN-SECBINFHSA-N (3r)-3-[tert-butyl(dimethyl)silyl]oxybutanal Chemical compound O=CC[C@@H](C)O[Si](C)(C)C(C)(C)C AFIKGLAMEXCVAN-SECBINFHSA-N 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- YMQKYTUCHSHLJI-SECBINFHSA-N methyl (3r)-3-[tert-butyl(dimethyl)silyl]oxybutanoate Chemical compound COC(=O)C[C@@H](C)O[Si](C)(C)C(C)(C)C YMQKYTUCHSHLJI-SECBINFHSA-N 0.000 description 3
- LDLDJEAVRNAEBW-SCSAIBSYSA-N methyl (3r)-3-hydroxybutanoate Chemical compound COC(=O)C[C@@H](C)O LDLDJEAVRNAEBW-SCSAIBSYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- KQIADDMXRMTWHZ-UHFFFAOYSA-N chloro-tri(propan-2-yl)silane Chemical compound CC(C)[Si](Cl)(C(C)C)C(C)C KQIADDMXRMTWHZ-UHFFFAOYSA-N 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- JXTHNDFMNIQAHM-UHFFFAOYSA-N dichloroacetic acid Chemical compound OC(=O)C(Cl)Cl JXTHNDFMNIQAHM-UHFFFAOYSA-N 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920000070 poly-3-hydroxybutyrate Polymers 0.000 description 2
- 239000012047 saturated solution Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000010898 silica gel chromatography Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HSJKGGMUJITCBW-SCSAIBSYSA-N (3r)-3-hydroxybutanal Chemical class C[C@@H](O)CC=O HSJKGGMUJITCBW-SCSAIBSYSA-N 0.000 description 1
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 1
- 238000006418 Brown reaction Methods 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 229930182555 Penicillin Natural products 0.000 description 1
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical class [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 1
- WRYNUJYAXVDTCB-UHFFFAOYSA-M acetyloxymercury Chemical compound CC(=O)O[Hg] WRYNUJYAXVDTCB-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- SIPUZPBQZHNSDW-UHFFFAOYSA-N bis(2-methylpropyl)aluminum Chemical compound CC(C)C[Al]CC(C)C SIPUZPBQZHNSDW-UHFFFAOYSA-N 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- YZBQHRLRFGPBSL-RXMQYKEDSA-N carbapenem Chemical compound C1C=CN2C(=O)C[C@H]21 YZBQHRLRFGPBSL-RXMQYKEDSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 229960005215 dichloroacetic acid Drugs 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- JEHCHYAKAXDFKV-UHFFFAOYSA-J lead tetraacetate Chemical compound CC(=O)O[Pb](OC(C)=O)(OC(C)=O)OC(C)=O JEHCHYAKAXDFKV-UHFFFAOYSA-J 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- 229940049954 penicillin Drugs 0.000 description 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000001476 sodium potassium tartrate Substances 0.000 description 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical class [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D205/00—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
- C07D205/02—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D205/06—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D205/08—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/188—Preparation; Treatments not provided for in C07F7/20 by reactions involving the formation of Si-O linkages
Definitions
- the present invention relates to the field of production of ⁇ -lactam compounds, and more particularly, discloses poly-3-hydroxybutyrate oxime (3 ⁇ ).
- R is - R 2 , R 2 , is a lower linear or branched alkyl c of C 4
- a lower linear or branched alkyl group in which R is Si—R 2 , R 2 , and R 3 is C r C 4 is an important intermediate for the preparation of carbapenem antibiotics (Andrew H. Berks, "Tetrahydron", Vol. 52, p. 331, 1996).
- there are many methods for synthesizing the above compounds for example: from 6-amino Penicillin synthesis (Yoshida, A.; Hayashi, T.; Takeda, N.; Oida, S.; Ohki, E. Chem. Pharm. Bull. 1981, 29, 2899-2909. ); Synthesis (Shiozaki, M.; Ishida, N.; Maruyama, H.; Hiraoka, T.
- R is a lower linear or branched alkyl group wherein i is R 2 and R 3 is C r C 4 . This method is more than the previous one
- the method steps are shorter, the yield is higher, and the use of environmentally harmful reagents and valuable reagents is avoided, which reduces costs and reduces environmental pollution.
- the reaction route is as follows -
- ( I ) , Rj, R 2 and R 3 are lower linear or branched alkyl c of C r C 4
- R is one of 1-tert-butyldimethylsilyl, isopropyldimethylsilyl and triisopropylsilyl.
- step a is: P(3HB) is refluxed with anhydrous methanol and sulfuric acid to obtain a preliminary product, and then reacted with the substituted silyl chloride.
- CH 2 CHO is mixed with isopropenyl acetate and p-toluenesulfonic acid under reflux and heated to reflux.
- the starting material poly-3-hydroxybutyrate P (3HB) used in the present invention is a thermoplastic resin which has good biodegradability and biocompatibility and is mainly used as a biodegradable material.
- the present invention can be used as a starting material for synthesizing a lactam compound having the general formula (I), and (3R)-3-RO-CH (CH 3 ) CH 2 COOCH 3 having a 3-hydroxy group substituted by RO can be conveniently obtained.
- 3R)-3-RO-CH(CH 3 ) CH 2 COOCH 3 synthesized by using (3R)-3-hydroxybutyric acid methyl ester, it has the advantage of being inexpensive.
- reaction condition is that P(3HB) is post-treated with methanol and sulfuric acid to obtain a preliminary product, and then reacted with the substituted silyl chloride to obtain (3R)-3-RO-CH(CH 3 )CH 2 COOC3 ⁇ 4. .
- the yields are all in molar yield, and if not stated, the reagents are commercially available chemically pure reagents.
- the melting point, optical rotation, and nuclear magnetic data of the final product obtained by the present invention are consistent with the data of the products disclosed in Chinese Patent Application No. 85105097.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/280,781 US7985857B2 (en) | 2006-02-28 | 2006-10-16 | Usage of poly-3-hydroxybutyrates in preparation of β-lactam compounds |
JP2008556632A JP5042243B2 (ja) | 2006-02-28 | 2006-10-16 | ポリ−3−ヒドロキシブチレートを用いてβ−ラクタム化合物を調製する方法 |
EP06804931A EP1990334B1 (en) | 2006-02-28 | 2006-10-16 | Usage of poly-3-hydroxyalkanoates in preparation of beta-lactam compounds |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200610013223.7 | 2006-02-28 | ||
CN2006100132237A CN101029056B (zh) | 2006-02-28 | 2006-02-28 | 聚-3-羟基丁酸酯在制备β-内酰胺化合物中的用途 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007098651A1 true WO2007098651A1 (fr) | 2007-09-07 |
Family
ID=38458644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2006/002707 WO2007098651A1 (fr) | 2006-02-28 | 2006-10-16 | UTILISATION DE POLY-3-HYDROXYALCANOATES POUR LA PRÉPARATION DE COMPOSÉS DE β-LACTAME |
Country Status (6)
Country | Link |
---|---|
US (1) | US7985857B2 (zh) |
EP (1) | EP1990334B1 (zh) |
JP (1) | JP5042243B2 (zh) |
KR (1) | KR101071440B1 (zh) |
CN (1) | CN101029056B (zh) |
WO (1) | WO2007098651A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115850065A (zh) * | 2022-10-14 | 2023-03-28 | 东莞理工学院 | 一种以硫酸氢钠为催化剂催化聚3-羟基丁酸酯降解制备r-3-羟基丁酸酯的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85105098A (zh) * | 1985-01-14 | 1986-07-09 | 钟渊化学工业株式会社 | 4-乙酰氧基-3-羟基乙基氮杂环丁-2-酮衍生物的制备方法 |
CN85105097A (zh) | 1984-07-05 | 1987-01-14 | 钟渊化学工业株式会社 | β-内酰胺化合物的制备方法 |
US4861877A (en) | 1984-07-05 | 1989-08-29 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Process for preparing 4-acetoxy-3-hydroxyethylazetidin-2-one derivatives |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0003960B1 (de) * | 1978-02-02 | 1983-06-29 | Ciba-Geigy Ag | 6-Substituierte Thia-Azaverbindungen, ihre Herstellung und diese enthaltende pharmazeutische Präparate |
US4680391A (en) * | 1983-12-01 | 1987-07-14 | Merck & Co., Inc. | Substituted azetidinones as anti-inflammatory and antidegenerative agents |
US4791198A (en) * | 1984-07-05 | 1988-12-13 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Beta-lactam compound and preparation thereof |
EP0259268A1 (de) * | 1986-09-04 | 1988-03-09 | Ciba-Geigy Ag | Verfahren zur Herstellung optisch aktiver Beta-Lactame |
-
2006
- 2006-02-28 CN CN2006100132237A patent/CN101029056B/zh not_active Expired - Fee Related
- 2006-10-16 KR KR1020087023768A patent/KR101071440B1/ko active IP Right Grant
- 2006-10-16 US US12/280,781 patent/US7985857B2/en not_active Expired - Fee Related
- 2006-10-16 WO PCT/CN2006/002707 patent/WO2007098651A1/zh active Application Filing
- 2006-10-16 EP EP06804931A patent/EP1990334B1/en not_active Expired - Fee Related
- 2006-10-16 JP JP2008556632A patent/JP5042243B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85105097A (zh) | 1984-07-05 | 1987-01-14 | 钟渊化学工业株式会社 | β-内酰胺化合物的制备方法 |
US4861877A (en) | 1984-07-05 | 1989-08-29 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Process for preparing 4-acetoxy-3-hydroxyethylazetidin-2-one derivatives |
CN85105098A (zh) * | 1985-01-14 | 1986-07-09 | 钟渊化学工业株式会社 | 4-乙酰氧基-3-羟基乙基氮杂环丁-2-酮衍生物的制备方法 |
Non-Patent Citations (8)
Title |
---|
ANDREW H. BERKS, TETRAHYDRON, vol. 52, 1996, pages 331 |
BERKS A.H.: "Preparations of two pivotal intermediates for the synthesis of 1-b-methyl carbapenem antibiotics", TETRAHEDRON, vol. 52, no. 2, 1996, pages 331 - 375, XP026541797 * |
D1 BERKS A. H.: "Preparations of two pivotal intermediates for the synthesis of 1-b-methyl carbapenem antibiotics", TETRAHEDRON, vol. 52, no. 2, 1996, pages 331 - 375 |
HAYASHI T. ET AL.: "2-(Alkythio)penem-3-carboxylic acids. V. Synthesis and antibacterial activities of "1-thiathienamycin" and related compounds", CHEM. PHARM. BULL., vol. 29, no. 11, 1981, pages 3158 - 3172, XP008126291 * |
See also references of EP1990334A4 * |
SEEBACH D. ET AL.: "Depolymerization of poly[(R)-3-hydroxy-butanoate] (PHB)", HELV. CHIM. ACTA, vol. 65, no. 2, 1982, pages 495 - 503, XP008126286 * |
SHIOZAKI, M.; ISHIDA, N.; MARUYAMA, H.; HIRAOKA, T., TETRAHEDRON, vol. 39, 1983, pages 2399 - 2407 |
YOSHIDA, A.; HAYASHI, T.; TAKEDA, N.; OIDA, S.; OHKI, E., CHEM. PHARM. BULL., vol. 29, 1981, pages 2899 - 2909 |
Also Published As
Publication number | Publication date |
---|---|
JP2009528300A (ja) | 2009-08-06 |
US20090088566A1 (en) | 2009-04-02 |
US7985857B2 (en) | 2011-07-26 |
CN101029056A (zh) | 2007-09-05 |
KR101071440B1 (ko) | 2011-10-10 |
JP5042243B2 (ja) | 2012-10-03 |
EP1990334B1 (en) | 2013-03-06 |
KR20080098444A (ko) | 2008-11-07 |
EP1990334A1 (en) | 2008-11-12 |
EP1990334A4 (en) | 2011-02-23 |
CN101029056B (zh) | 2011-06-08 |
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