[EN] IMPROVED PROCESS FOR THE PREPARATION OF LINEZOLID INTERMEDIATE<br/>[FR] PROCÉDÉ AMÉLIORÉ POUR LA PRÉPARATION D'UN INTERMÉDIAIRE DE LINÉZOLIDE
申请人:SYMED LABS LTD
公开号:WO2014045292A1
公开(公告)日:2014-03-27
The present inventors have surprisingly found that (5R)-5-(hydroxymethyl)-3-[3-fluoro-4-(4-morpholinyl)phenyl]-2-oxazolidinone can be prepared in high purity and with high yield, by reacting 3-fluoro-4-morpholinyl aniline with (R)-glycidol, or an ester or an ether derivative thereof, to produce a novel 2-hydroxypropyl intermediate, which is then subjected cyclization using a suitable reagent to produce (5R)-5-(hydroxymethyl)-3-[3-fluoro-4-(4-morpholinyl)phenyl]-2-oxazolidinone or an ester, or an ether derivative thereof. In one aspect, provided herein are efficient, industrially advantageous and environmentally friendly processes for the preparation of (5R)-5-(hydroxymethyl)-3-[3-fluoro-4-(4-morpholinyl)phenyl]-2-oxazolidinone and its derivatives, in high yield and with high purity, using novel intermediates.
本发明人惊奇地发现,通过将3-氟-4-吗啡基苯胺与(R)-环氧丙醇或其酯或醚衍生物反应,制备出一种新型2-羟基丙醇中间体,然后使用适当的试剂进行环化反应,可以高纯度高产率地制备出(5R)-5-(羟甲基)-3-[3-氟-4-(4-吗啡基)苯基]-2-噁唑烷酮或其酯或醚衍生物。在一个方面,本文提供了高效、工业上有利和环保的过程,使用新型中间体高产率高纯度地制备(5R)-5-(羟甲基)-3-[3-氟-4-(4-吗啡基)苯基]-2-噁唑烷酮及其衍生物。