| 发明名称 |
PROCESS FOR PREPARING 7-AMINO-3-METHOXYMETHYL-3-CEPHEM-4-CARBOXYLIC ACID |
| 摘要 |
7-amino-3-methoxymethyl-3-cephem-4-carboxylic acid of formula (I) can be easily prepared by reacting 7-aminocephalosporanic acid of formula (II) with an azeotropic mixture of trimethyl borate and methanol in the presence of methanesulfonic acid.
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| 申请公布号 |
CA2387223(A1) |
申请公布日期 |
2001.04.19 |
| 申请号 |
CA20002387223 |
申请日期 |
2000.10.13 |
| 申请人 |
HANMI PHARM. CO., LTD. |
发明人 |
LEE, JAE HEON;KIM, CHEOL KYUNG;LEE, GWAN SUN;CHANG, YOUNG KIL;PARK, CHUL HYUN;PARK, GHA SEUNG |
| 分类号 |
C07D501/04;C07B61/00;C07D501/00;C07D501/22;(IPC1-7):C07D501/22 |
主分类号 |
C07D501/04 |
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