| 发明名称 |
OZONISERINGSFORFARANDE FOR FRAMSTELLNING AV ALFA-(AZETIDINYL)-ALFA-(HYDROXIETYLIDEN)-ETTIKSYRAFORENINGAR |
| 摘要 |
An intermediate represented by following formula for synthesizing 3-hydroxy-3-cephem compounds <IMAGE> wherein A and B each is a hydrogen or amino substituent; R is a hydrogen or thiol substituent; Hal is a halogen; X is a hydroxy or carboxy protecting group; the broken line between A and R shows that when R and B are hydrogens, and A is a carboxylic acyl, the substituents can be combined to form an azetidinothiazoline bicyclic ring; and the enamine derivatives thereof. |
| 申请公布号 |
SE434637(B) |
申请公布日期 |
1984.08.06 |
| 申请号 |
SE19790007813 |
申请日期 |
1979.09.20 |
| 申请人 |
SHIONOGI & CO LTD |
发明人 |
1)T * TSUJI;2)Y * HAMASHIMA;3)M * YOSHIOKA;4)M * NARISADA;5)H * TANIDA;6)T * KOMENO;7)W * NAGATA |
| 分类号 |
C07D205/095;C07D501/08;C07D501/10;C07D501/20;C07D501/59;(IPC1-7):07D205/08;07D513/04 |
主分类号 |
C07D205/095 |
| 代理机构 |
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| 主权项 |
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