Title:
METHOD FOR PREPARING TRIFLUOROMETHYL-SUBSTITUTED PYRAN DERIVATIVE
Document Type and Number:
WIPO Patent Application WO/2017/202357
Kind Code:
A1
Abstract:
Provided is a method for preparing a trifluoromethyl-substituted pyran derivative, that is, a method for preparing the compound shown in formula (I) and an intermediate thereof. The method has the advantages of having mild reaction conditions, simple operations, high reaction yield, high product purity and convenient post-treatment, rendering the method suitable for industrial production.
Inventors:
ZHANG CHEN (CN)
WANG JIANMIN (CN)
HE PING (CN)
HUANG LONGBIN (CN)
WANG JIANMIN (CN)
HE PING (CN)
HUANG LONGBIN (CN)
Application Number:
PCT/CN2017/085867
Publication Date:
November 30, 2017
Filing Date:
May 25, 2017
Export Citation:
Assignee:
SICHUAN HAISCO PHARMACEUTICAL CO LTD (CN)
International Classes:
C07D487/04; C07D309/14
Domestic Patent References:
| WO2015192701A1 | 2015-12-23 | |||
| WO2007126745A2 | 2007-11-08 | |||
| WO2014018350A1 | 2014-01-30 | |||
| WO2010056708A1 | 2010-05-20 |
Attorney, Agent or Firm:
BOSS&YOUNG PATENT AND TRADEMARK LAW OFFICE (CN)
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