| 发明名称 |
Transistor de commutation |
| 摘要 |
3R-Phthalimido-1-(1'S-p-nitrobenzyloxycarbonyl-2'-methylprop-2'-enyl)- 4-oxo-2-azetidinesulfenic acid is prepared by scission of the S-C2 bond of p-nitrobenzyl 6-phthalimido-2,2-dimethylpenam-3-carboxylate-1-oxide. The sulfenic acid can be converted to desacetoxycephalosporin. |
| 申请公布号 |
FR1172055(A) |
申请公布日期 |
1959.02.05 |
| 申请号 |
FRD1172055 |
申请日期 |
1956.11.21 |
| 申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
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| 分类号 |
C07D403/04;C07D501/10;H01L21/00;H01L21/288;H01L23/04;H01L23/42;H01L29/00 |
主分类号 |
C07D403/04 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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