DE69330658T2 - Verfahren zur Herstellung von 4-substituierten Azetidinonderivaten - Google Patents
Verfahren zur Herstellung von 4-substituierten AzetidinonderivatenInfo
- Publication number
- DE69330658T2 DE69330658T2 DE69330658T DE69330658T DE69330658T2 DE 69330658 T2 DE69330658 T2 DE 69330658T2 DE 69330658 T DE69330658 T DE 69330658T DE 69330658 T DE69330658 T DE 69330658T DE 69330658 T2 DE69330658 T2 DE 69330658T2
- Authority
- DE
- Germany
- Prior art keywords
- group
- substituted
- copper
- general formula
- following general
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- -1 4-substituted azetidinone Chemical class 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title description 10
- 125000003118 aryl group Chemical group 0.000 claims abstract description 13
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 12
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 9
- 125000003277 amino group Chemical group 0.000 claims abstract description 9
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 claims abstract description 9
- 239000005749 Copper compound Substances 0.000 claims abstract description 8
- MNFORVFSTILPAW-UHFFFAOYSA-N azetidin-2-one Chemical class O=C1CCN1 MNFORVFSTILPAW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000001880 copper compounds Chemical class 0.000 claims abstract description 8
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 6
- 150000003566 thiocarboxylic acids Chemical class 0.000 claims abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 5
- 239000003960 organic solvent Substances 0.000 claims abstract description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 36
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 33
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(i) oxide Chemical group [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims description 23
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 12
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 7
- 150000001879 copper Chemical class 0.000 claims description 5
- 239000005751 Copper oxide Substances 0.000 claims description 4
- 229910000431 copper oxide Inorganic materials 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 125000005940 1,4-dioxanyl group Chemical group 0.000 claims description 2
- 125000000168 pyrrolyl group Chemical group 0.000 claims description 2
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 claims description 2
- 125000001412 tetrahydropyranyl group Chemical group 0.000 claims description 2
- 150000002730 mercury Chemical class 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 21
- 239000000706 filtrate Substances 0.000 description 17
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 15
- 239000000203 mixture Substances 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 10
- FCAXRYJATFVDQX-IVMMDQJWSA-N (3s,4r)-3-[(1r)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-phenylsulfanylazetidin-2-one Chemical compound N1C(=O)[C@H]([C@H](O[Si](C)(C)C(C)(C)C)C)[C@H]1SC1=CC=CC=C1 FCAXRYJATFVDQX-IVMMDQJWSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000003480 eluent Substances 0.000 description 5
- 238000010898 silica gel chromatography Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- VXYYXBQTPJTYOB-SCSAIBSYSA-N (2r)-oxolane-2-carbothioic s-acid Chemical compound OC(=S)[C@H]1CCCO1 VXYYXBQTPJTYOB-SCSAIBSYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- YEOCHZFPBYUXMC-UHFFFAOYSA-L copper benzoate Chemical compound [Cu+2].[O-]C(=O)C1=CC=CC=C1.[O-]C(=O)C1=CC=CC=C1 YEOCHZFPBYUXMC-UHFFFAOYSA-L 0.000 description 2
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 150000002961 penems Chemical class 0.000 description 2
- CYIYODQQOPTSEF-NRWUCQMLSA-N s-[(2r,3s)-3-[(1r)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl] (2r)-oxolane-2-carbothioate Chemical compound N1C(=O)[C@H]([C@H](O[Si](C)(C)C(C)(C)C)C)[C@H]1SC(=O)[C@@H]1OCCC1 CYIYODQQOPTSEF-NRWUCQMLSA-N 0.000 description 2
- BHLODDASNHBODY-UHFFFAOYSA-N 1-methylpyrrole-2-carbothioic s-acid Chemical compound CN1C=CC=C1C(S)=O BHLODDASNHBODY-UHFFFAOYSA-N 0.000 description 1
- PQTVRBFZNRIBCR-UHFFFAOYSA-N 1-sulfanylazetidin-2-one Chemical compound SN1CCC1=O PQTVRBFZNRIBCR-UHFFFAOYSA-N 0.000 description 1
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 1
- 125000004423 acyloxy group Chemical group 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000005036 alkoxyphenyl group Chemical group 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- UIJGNTRUPZPVNG-UHFFFAOYSA-N benzenecarbothioic s-acid Chemical compound SC(=O)C1=CC=CC=C1 UIJGNTRUPZPVNG-UHFFFAOYSA-N 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 125000001231 benzoyloxy group Chemical group C(C1=CC=CC=C1)(=O)O* 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229940041011 carbapenems Drugs 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- RFKZUAOAYVHBOY-UHFFFAOYSA-M copper(1+);acetate Chemical compound [Cu+].CC([O-])=O RFKZUAOAYVHBOY-UHFFFAOYSA-M 0.000 description 1
- PUHAKHQMSBQAKT-UHFFFAOYSA-L copper;butanoate Chemical compound [Cu+2].CCCC([O-])=O.CCCC([O-])=O PUHAKHQMSBQAKT-UHFFFAOYSA-L 0.000 description 1
- LZJJVTQGPPWQFS-UHFFFAOYSA-L copper;propanoate Chemical compound [Cu+2].CCC([O-])=O.CCC([O-])=O LZJJVTQGPPWQFS-UHFFFAOYSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- 229940112669 cuprous oxide Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000005059 halophenyl group Chemical group 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- KOUKXHPPRFNWPP-UHFFFAOYSA-N pyrazine-2,5-dicarboxylic acid;hydrate Chemical compound O.OC(=O)C1=CN=C(C(O)=O)C=N1 KOUKXHPPRFNWPP-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- VTFMWNASJHKSAX-OSAQELSMSA-N s-[(2r,3s)-3-[(1r)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl] 1-methylpyrrole-2-carbothioate Chemical compound N1C(=O)[C@H]([C@H](O[Si](C)(C)C(C)(C)C)C)[C@H]1SC(=O)C1=CC=CN1C VTFMWNASJHKSAX-OSAQELSMSA-N 0.000 description 1
- AOSURLCYTJHJPZ-FXKGHYBPSA-N s-[(2r,3s)-3-[(1r)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl] 2-(oxolan-3-yl)ethanethioate Chemical compound N1C(=O)[C@H]([C@H](O[Si](C)(C)C(C)(C)C)C)[C@H]1SC(=O)CC1COCC1 AOSURLCYTJHJPZ-FXKGHYBPSA-N 0.000 description 1
- FIXHQLRMHPEKMN-NKPLSRDGSA-N s-[(2r,3s)-3-[(1r)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl] 2-[tert-butyl(diphenyl)silyl]oxyethanethioate Chemical compound N1C(=O)[C@H]([C@H](O[Si](C)(C)C(C)(C)C)C)[C@H]1SC(=O)CO[Si](C(C)(C)C)(C=1C=CC=CC=1)C1=CC=CC=C1 FIXHQLRMHPEKMN-NKPLSRDGSA-N 0.000 description 1
- VBDQCFFPOAFFEU-SUZMYJTESA-N s-[(2r,3s)-3-[(1r)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl] 2-methoxyethanethioate Chemical compound COCC(=O)S[C@H]1NC(=O)[C@@H]1[C@@H](C)O[Si](C)(C)C(C)(C)C VBDQCFFPOAFFEU-SUZMYJTESA-N 0.000 description 1
- NWZOJCHCJACYRE-IVMMDQJWSA-N s-[(2r,3s)-3-[(1r)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl] benzenecarbothioate Chemical compound N1C(=O)[C@H]([C@H](O[Si](C)(C)C(C)(C)C)C)[C@H]1SC(=O)C1=CC=CC=C1 NWZOJCHCJACYRE-IVMMDQJWSA-N 0.000 description 1
- RJNYWBGQOZVDMV-UBHAPETDSA-N s-[(2r,3s)-3-[(1r)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl] ethanethioate Chemical compound CC(C)(C)[Si](C)(C)O[C@H](C)[C@@H]1[C@@H](SC(C)=O)NC1=O RJNYWBGQOZVDMV-UBHAPETDSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
-
- 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
- C07D205/09—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 with a sulfur atom directly attached in position 4
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Saccharide Compounds (AREA)
- Cephalosporin Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07377192A JP3224412B2 (ja) | 1992-03-30 | 1992-03-30 | ４−置換アゼチジノン誘導体の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69330658D1 DE69330658D1 (de) | 2001-10-04 |
| DE69330658T2 true DE69330658T2 (de) | 2002-07-04 |
Family
ID=13527812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69330658T Expired - Lifetime DE69330658T2 (de) | 1992-03-30 | 1993-03-30 | Verfahren zur Herstellung von 4-substituierten Azetidinonderivaten |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5808055A (en:Method) |
| EP (1) | EP0563878B1 (en:Method) |
| JP (1) | JP3224412B2 (en:Method) |
| KR (1) | KR100298922B1 (en:Method) |
| AT (1) | ATE204860T1 (en:Method) |
| AU (1) | AU669507B2 (en:Method) |
| CA (1) | CA2092868C (en:Method) |
| DE (1) | DE69330658T2 (en:Method) |
| ES (1) | ES2161218T3 (en:Method) |
| FI (1) | FI102747B (en:Method) |
| NO (1) | NO179447C (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1266112C (zh) | 2001-04-24 | 2006-07-26 | 麻省理工学院 | 铜－催化的碳－杂原子键和碳－碳键的形成 |
| WO2003037855A1 (fr) * | 2001-11-02 | 2003-05-08 | Toray Industries, Inc. | Processus de production d'acide thiocarboxylique ou de sel de celui-ci, procede de determination de purete optique de ce compose, acide tetrahydrofuranthiocarboxylique ou derive de celui-ci |
| CN1684944A (zh) | 2002-08-02 | 2005-10-19 | 麻省理工学院 | 铜催化形成碳－杂原子和碳－碳键的方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8500831D0 (en) * | 1985-01-14 | 1985-02-20 | Erba Farmitalia | Preparing azetidinone intermediates |
| CA2000565C (en) * | 1988-10-19 | 1998-06-23 | Masaji Ishiguro | Process for the preparation of 4-acyloxy-2-azetidinone derivatives |
-
1992
- 1992-03-30 JP JP07377192A patent/JP3224412B2/ja not_active Expired - Lifetime
-
1993
- 1993-03-23 AU AU35386/93A patent/AU669507B2/en not_active Ceased
- 1993-03-25 NO NO931105A patent/NO179447C/no unknown
- 1993-03-25 KR KR1019930004734A patent/KR100298922B1/ko not_active Expired - Fee Related
- 1993-03-29 CA CA002092868A patent/CA2092868C/en not_active Expired - Fee Related
- 1993-03-30 AT AT93105239T patent/ATE204860T1/de active
- 1993-03-30 DE DE69330658T patent/DE69330658T2/de not_active Expired - Lifetime
- 1993-03-30 EP EP93105239A patent/EP0563878B1/en not_active Expired - Lifetime
- 1993-03-30 ES ES93105239T patent/ES2161218T3/es not_active Expired - Lifetime
- 1993-03-30 FI FI931429A patent/FI102747B/fi active
-
1995
- 1995-07-05 US US08/498,499 patent/US5808055A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR930019620A (ko) | 1993-10-18 |
| JP3224412B2 (ja) | 2001-10-29 |
| US5808055A (en) | 1998-09-15 |
| KR100298922B1 (ko) | 2001-10-22 |
| NO931105L (no) | 1993-10-01 |
| NO179447C (no) | 1996-10-09 |
| FI931429A0 (fi) | 1993-03-30 |
| EP0563878B1 (en) | 2001-08-29 |
| NO931105D0 (no) | 1993-03-25 |
| EP0563878A3 (en:Method) | 1994-04-27 |
| CA2092868C (en) | 2008-07-08 |
| AU669507B2 (en) | 1996-06-13 |
| EP0563878A2 (en) | 1993-10-06 |
| FI931429L (fi) | 1993-10-01 |
| FI102747B1 (fi) | 1999-02-15 |
| AU3538693A (en) | 1993-10-07 |
| FI102747B (fi) | 1999-02-15 |
| CA2092868A1 (en) | 1993-10-01 |
| NO179447B (no) | 1996-07-01 |
| DE69330658D1 (de) | 2001-10-04 |
| JPH05271186A (ja) | 1993-10-19 |
| ATE204860T1 (de) | 2001-09-15 |
| ES2161218T3 (es) | 2001-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0126709B1 (de) | Verfahren zur Herstellung von optisch aktiven Azetidinonen | |
| EP0180252B1 (en) | Process of preparing azetidinone compounds | |
| DE69428403T2 (de) | Verfahren zur Herstellung von Azetidinverbindungen und Ausgangsverbindungen dafür | |
| DE3787815T2 (de) | Azetidinonderivate. | |
| DE69124769T2 (de) | Verfahren zur Herstellung von (1'R,3S)-3-(1'-hydroxy-ethyl)-Azetidin-2-on und deren Derivaten | |
| DE69319764T2 (de) | Verfahren zur Herstellung von Beta-Lactamderivaten und Zwischenprodukt für ihre Synthese | |
| DE3428049C2 (en:Method) | ||
| DE3785878T2 (de) | 3,4-disubstituierte-2-azetidinon-derivate und verfahren zu ihrer herstellung. | |
| DE2063268C2 (de) | Verfahren zur Acylierung von 6-Aminopenicillansäure oder einer 7-Aminocephalosporansäure | |
| DE3382761T2 (de) | Verfahren zur Herstellung von Penem-Verbindungen. | |
| EP0146730A1 (en) | Process for the production of penems | |
| DE3122523C2 (en:Method) | ||
| DE2205144C3 (de) | Azetidino [3,2-d] thiazole und Verfahren zu ihrer Herstellung | |
| DE69018163T2 (de) | Verfahren zur herstellung von enolsilyläther-verbindungen. | |
| DE69504125T2 (de) | Verfahren zur Herstellung von Carbapenem-Verbindungen | |
| DE69331650T2 (de) | Herstellung von Zwischenprodukten für beta-Methyl-carbapeneme | |
| DE68921306T2 (de) | Verfahren zur Herstellung von 4-Acyloxy-2-azetidinon-Derivaten. | |
| DE69224093T2 (de) | 4-substituierte Azetidinone als Vorläufer zu 2-substituierte-3-Carbonsäure-Carbapenem-antibiotika und ein Verfahren zu ihrer Herstellung | |
| EP0563878B1 (en) | Process for producing 4-substituted azetidinone derivatives | |
| DE69329939T2 (de) | Verfahrenzur Abspaltung von Silylschutzgruppen aus geschützten HO-Gruppen | |
| EP0399228A1 (de) | Verfahren zur Herstellung von Penemverbindungen | |
| DE69124017T2 (de) | Heterocyclische Derivate | |
| DE69315007T2 (de) | Verfahren zur Herstellung von Carbapenem-Derivaten | |
| DE3408196C2 (en:Method) | ||
| DE3018847C2 (de) | 6-α- und 6-β-substituierte Penicillansäurederivate und Verfahren zu ihrer Herstellung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8327 | Change in the person/name/address of the patent owner |
Owner name: NIPPON SODA CO. LTD., TOKIO/TOKYO, JP |