| 发明名称 |
FOERFARANDE FOER FRAMSTAELLNING AV 7BETA-AMINO-2- ELLER -3-CEFEM-3-OL-4-KARBOXYLSYRAFOERENINGAR |
| 摘要 |
<p>1503581 Preparation of ceph-2- or -3-em derivatives CIBA-GEIGY AG 24 Feb 1975 [26 Feb 1974 5 June 1974 12 Aug 1974] 7625/75 Heading C2C Compounds IA and IB (R 1 <SP>a</SP> is H or a protecting group; R 1 b is H or acyl; or R 1 <SP>a</SP> and R 1 <SP>b</SP> together form a divalent protecting group; R 2 is OH or a group which with the adjacent -CO- group forms protected carboxyl; and R 3 is H, 1-7C alkyl or a protecting group) and the 1-oxides of the ceph- 3-em compounds are prepared by cyclization of a compound II followed, where necessary, by deprotection and/or other conventional modifications.</p> |
| 申请公布号 |
FI66389(C) |
申请公布日期 |
1984.10.10 |
| 申请号 |
FI19750000503 |
申请日期 |
1975.02.21 |
| 申请人 |
CIBA-GEIGY AG |
发明人 |
WOODWARD ROBERT BURNS;BICKEL HANS |
| 分类号 |
C07D205/08;C07D205/095;C07D413/12;C07D417/12;C07D501/04;C07D501/08;C07D501/10;C07D501/59;C07D501/60;(IPC1-7):C07D501/08 |
主分类号 |
C07D205/08 |
| 代理机构 |
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代理人 |
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