| 发明名称 |
Verfahren zur Herstellung von Cephalosporinderivaten |
| 摘要 |
Betaine (Ie is prepd. by reacting the hydronitrate with a base, pref. an organic one with a pKb of 6 or less, particularly a liquid tertiary or secondary amine: (where R1 is H; R2 is acyl and X is quaternary ammonium). Specifically claimed is N-(7-21-thienylacetamido-cepth-3-em-3-ylmethyl)pyridinium-4-carbo- xylate. |
| 申请公布号 |
DE1445844(A1) |
申请公布日期 |
1969.01.16 |
| 申请号 |
DE19641445844 |
申请日期 |
1964.11.04 |
| 申请人 |
GLAXO LABORATORIES LTD. |
发明人 |
STOCKER,GABRIELLE;GIBSON LONG,ALAN;ALFRED CRISP,HAROLD;FRANCIS OUGHTON,JOHN;JOHN SHARP,CHRISTOPHER;ALFRED WILKINSON,PETER;EARDLEY,STEPHEN |
| 分类号 |
C07D501/00;A61K31/545;A61K31/546;B41J11/32;B41L5/06;C07D501/38;C07D501/46 |
主分类号 |
C07D501/00 |
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