Title:
【発明の名称】3―フルオロスルホニルオキシセフ―3―エム置換法
Document Type and Number:
Japanese Patent JP2964423
Kind Code:
B2
Abstract:
3-Fluorosulfonyloxyceph-3-ems having a protected amino or acylamino group in the 7-position are subject to carbon-carbon bond formation at the 3-position by means of a palladium catalyzed coupling reaction with substituted organostannanes. A process for preparing cefprozil is disclosed.
Inventors:
SUTEFUIN RICHAADO BEIKAA
CHESUTAA SAPINO JUNIA
GUREGORII HOORU ROOSU
CHESUTAA SAPINO JUNIA
GUREGORII HOORU ROOSU
Application Number:
JP31447990A
Publication Date:
October 18, 1999
Filing Date:
November 21, 1990
Export Citation:
Assignee:
BURISUTORU MAIYAAZU SUKUIBU CO
International Classes:
C07D487/04; B01J23/44; B01J27/13; B01J31/12; B01J31/22; C07B61/00; C07D463/00; C07D501/00; C07D501/04; C07D501/20; C07D501/22; C07D501/59; C07D505/00; C07F7/22; (IPC1-7): C07D501/59; B01J23/44; C07D487/04; C07D501/04; C07D501/22; C07D505/00; C07F7/22
Domestic Patent References:
| JP50108288A | ||||
| JP24788A | ||||
| JP1313483A | ||||
| JP543087A |
Attorney, Agent or Firm:
Takehiko Saito