| 发明名称 |
A PROCESS FOR THE PREPARATION OF DIPHENOXYLATE HYDROCHLORIDE |
| 摘要 |
<p>The present invention relates to an improved process for the preparation of diphenoxylate hydrochloride of the formula (I) by condensing 4-Bromo-2,2-diphenylbutanenitrile ( II) and Ethyl 4-phenylpiperidine-4-carboxylate (III) in aqueous medium under basic conditions in the presence of a catalyst. This invention also relates to an improved method for purification of the diphenoxylate hydrochloride.</p> |
| 申请公布号 |
IN5359CH2012(A) |
申请公布日期 |
2015.08.14 |
| 申请号 |
IN2012CH05359 |
申请日期 |
2012.12.22 |
| 申请人 |
HYGRO CHEMICALS PHARMTEK PVT. LTD |
发明人 |
DR. D S IYENGAR;DR. ANIL SAIKIA;T M NIRANJAN |
| 分类号 |
C07D211/00 |
主分类号 |
C07D211/00 |
| 代理机构 |
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