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Patent Searching and Data


Title:
METHOD FOR PREPARING OXAZOLIDINONE INTERMEDIATE
Document Type and Number:
WIPO Patent Application WO/2017/076293
Kind Code:
A1
Abstract:
The invention relates to a method for preparing an oxazolidinone intermediate. Specifically, a synthesis procedure for the intermediate comprises: directly performing a "one-pot" reaction on a compound I, a compound J or a compound L without performing isolation, wherein a salt of a compound K is selected from a hydrochloride, sulfate, malate, tartarate, p-toluenesulfonate or lactate, and wherein the symbol * in a compound indicates an atom of an R-type chirality or an S-type chirality or a racemate thereof.

Inventors:
LI SIYUAN (CN)
GUI SHAOXIAO (CN)
WANG GENLIANG (CN)
ZHANG JICHENG (CN)
HUANG LUNING (CN)
TAO ANPING (CN)
GU HONG (CN)
Application Number:
PCT/CN2016/104360
Publication Date:
May 11, 2017
Filing Date:
November 02, 2016
Export Citation:
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Assignee:
ZHEJIANG HUAHAI PHARM CO LTD (CN)
SHANGHAI AOBO PHARMTECH INC LTD (CN)
International Classes:
C07D413/14; C07C213/00; C07C217/48; C07C231/10; C07C235/78; C07D263/20
Foreign References:
EP1008590A12000-06-14
CN104496979A2015-04-08
CN103304594A2013-09-18
Other References:
KAMAL, A. ET AL.: "New Chemoenzymatic Pathway for beta-adrenergic Blocking Agents", TETRAHEDRON ASYMMETRY, vol. 16, 31 December 2005 (2005-12-31), pages 1485 - 1494, XP 027675792
DATABASE Chemical Abstract 31 December 1988 (1988-12-31), ANONYMOUS, XP 055543793, retrieved from STN Database accession no. 113681-80-4
VITI, G. ET AL.: "New Antagonists of Platelet-Activating Factor Containing 2-Oxazolidinone or 2-MorpholinoneEuropean", JOURNAL OF MEDICINAL CHEMISTRY, vol. 29, no. 5, 31 December 1994 (1994-12-31), pages 401 - 406, XP 023870432, DOI: doi:10.1016/0223-5234(94)90066-3
ZHANG, HUIZHEN ET AL.: "Recent Advances in Syntheses of Oxazole Compounds", CHINESE JOURNAL OF ORGANIC CHEMISTRY, vol. 31, no. 12, 31 December 2011 (2011-12-31), pages 1963 - 1976, XP 009510494
See also references of EP 3372597A4
Attorney, Agent or Firm:
PATENTSINO IP FIRM (CN)
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