发明名称 |
AN IMPROVED PROCESS FOR THE PREPARATION OF RIFAMYCIN DERIVATIVES |
摘要 |
The present invention relates to an improved and industrially advantageous process for the preparation of Rifaximin with high purity and yield. Particularly, the present invention relates to improved processes for the preparation of Rifaximin from Rifamycin O and S. More particularly the present invention relates to a process for the preparation of Rifaximin through 3-halorifamycin S. The present invention further relates to a novel polymorph of Rifaximin and process for its preparation. |
申请公布号 |
EP3134415(A2) |
申请公布日期 |
2017.03.01 |
申请号 |
EP20150780496 |
申请日期 |
2015.04.19 |
申请人 |
Granules India Limited |
发明人 |
VETUKURI VNKV, Prasada Raju;GILLA, Goverdhan;BOINI, Ambaiah;CHIGURUPATI, Krishna Prasad |
分类号 |
C07D498/12;A61K31/395 |
主分类号 |
C07D498/12 |
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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