Title:
PREPARATION METHOD FOR TRIFLUOROMETHYL-SUBSTITUTED PYRAN DERIVATIVE
Document Type and Number:
WIPO Patent Application WO/2017/202365
Kind Code:
A1
Abstract:
Provided are a preparation method for a trifluoromethyl-substituted pyran derivative and an intermediate thereof, namely, a preparation method for a compound as shown in formula (I) and an intermediate thereof. The method is characterized by mild reaction conditions, simple operations, high reaction yield, high product purity and convenient post-treatment, rendering the method suitable for industrial production.
Inventors:
ZHANG XIAOWEI (CN)
ZHAO FUQIANG (CN)
LIU ZHAOJUN (CN)
LONG YUANQIANG (CN)
LIU ZHEN (CN)
ZHANG CHEN (CN)
WANG JIANMIN (CN)
ZHAO FUQIANG (CN)
LIU ZHAOJUN (CN)
LONG YUANQIANG (CN)
LIU ZHEN (CN)
ZHANG CHEN (CN)
WANG JIANMIN (CN)
Application Number:
PCT/CN2017/085925
Publication Date:
November 30, 2017
Filing Date:
May 25, 2017
Export Citation:
Assignee:
SICHUAN HAISCO PHARMACEUTICAL CO LTD (CN)
International Classes:
C07D487/04; A61K31/351; A61K31/4162; A61P3/00; A61P3/04; A61P3/06; A61P3/10; A61P9/10; A61P9/12; A61P13/12; A61P25/00; C07D309/14
Domestic Patent References:
| WO2015192701A1 | 2015-12-23 | |||
| WO2007126745A2 | 2007-11-08 | |||
| WO2014018350A1 | 2014-01-30 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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