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LT - METHOD FOR PREPARING SITAGLIPTIN INTERMEDIATE VIA ASYMMETRICAL REDUCTION METHOD

EN - METHOD FOR PREPARING SITAGLIPTIN INTERMEDIATE VIA ASYMMETRICAL REDUCTION METHOD

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Bibliographic data

Indications of the International Patent Classification (IPC)
(51)	INT.CL.	C07C 229/34
		C07C 227/32
		C07C 271/22
		C07C 269/04
		C07D 487/04

European patent
(11)	Number of the document	3156391
(13)	Kind of document	T
(96)	European patent application number	15848178.8
	Date of filing the European patent application	2015-10-09
(97)	Date of publication of the European application	2017-04-19
(45)	Date of publication and mention of the grant of the patent	2020-09-02
(46)	Date of publication of the claims translation

PCT application
(86)	Number	PCT/CN2015/091539
	Date	2015-10-09

PCT application publication
(87)	Number	WO 2016/055015
	Date	2016-04-14

Priority applications
(30)	Number	Date	Country code
	201410532331	2014-10-11	CN

Inventors
(72)	HONG, Jian, CN WANG, Yusheng, CN WANG, Boyu, CN HUANG, Luning, CN GU, Eric, CN

Grantee
(73)	Zhejiang Huahai Pharmaceutical Co., Ltd, Xunqiao, Linhai, Zhejiang 317024, CN Shanghai Syncores Technologies Inc. Ltd., No. 538 Cailun Road, Zhangjiang Hi-Tech Park, Pudong New District,, Shanghai 201203, CN

Title
(54)	METHOD FOR PREPARING SITAGLIPTIN INTERMEDIATE VIA ASYMMETRICAL REDUCTION METHOD
	METHOD FOR PREPARING SITAGLIPTIN INTERMEDIATE VIA ASYMMETRICAL REDUCTION METHOD