Invention Grant
- Patent Title: Process for preparing entecavir and its intermediates
- Patent Title (中): 恩替卡韦及其中间体的制备方法
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Application No.: US13027859Application Date: 2011-02-15
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Publication No.: US08481728B2Publication Date: 2013-07-09
- Inventor: Tsung-Cheng Hu , Hung-Tsung Huang
- Applicant: Tsung-Cheng Hu , Hung-Tsung Huang
- Applicant Address: TW Tainan
- Assignee: Scinopharm Taiwan, Ltd.
- Current Assignee: Scinopharm Taiwan, Ltd.
- Current Assignee Address: TW Tainan
- Agency: VLP Law Group LLP
- Agent Enshan Hong; Kent H. Cheng
- Main IPC: C07D473/00
- IPC: C07D473/00 ; C07D307/93 ; C07C47/00
Abstract:
A process of making entecavir comprising converting a compound of formula (M5) to entecavir, wherein the two PGs on the formula (M5) are taken together to form an optionally substituted six- or seven-member cyclic ring.
Public/Granted literature
- US20110201809A1 Process for Preparing Entecavir and its Intermediates Public/Granted day:2011-08-18
Information query
IPC分类:
| C | 化学；冶金 |
| C07 | 有机化学 |
| C07D | 杂环化合物（高分子化合物入C08） |
| C07D473/00 | 含嘌呤环系的杂环化合物 |
