发明名称 |
7-amino-cephalosporanic acid derivs prepn |
摘要 |
<p>7-Amino-cephalosporanic acid derivs. prepn. New cpds. of formula (I) : (where R is H, or OH esterified by a carboxylic acid in which the ester O-atoms may be substd. by S, but not acetoxy gp., a carbamoyloxy gp. which may be N-substd. or whose O-atoms may be replaced by S, or 4 degrees ammonium gp.) and their salts, are prepd. by reacting a metal azide partic. that of Na or K with a cpd. of formula (ii) : (where Z is an esterified hydroxy acetyl gp.) or by acylation with an N3CH2-CO-gp. or by eliminating protective gps. in the carboxyl gp. of (I) under acidic conditions. The cpds. have antibacterial activity partic. against gram-positive bacteria.</p> |
申请公布号 |
CH524634(A) |
申请公布日期 |
1972.06.30 |
申请号 |
CH19710009170 |
申请日期 |
1969.06.06 |
申请人 |
CIBA-GEIGY AG |
发明人 |
BICKEL,HANS,DR.;MUELLER,JOHANNES,DR.;BOSSHARDT,ROLF,DR.;PETER,HEINRICH,DR.;FECHTIG,BRUNO,DR. |
分类号 |
C07D501/04;A61K31/545;B01D46/04;C07D501/20;C07D501/22;C07D501/28;C07D501/36;C07D501/40;(IPC1-7):C07D99/24 |
主分类号 |
C07D501/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|