申请人:Zhejiang Hisun Pharmaceutical Co. Ltd.
公开号:EP2816039A1
公开(公告)日:2014-12-24
Disclosed is a new method for preparing a methyl substitute of a linezolid intermediate, (S)-2-(3-(3-fluoro-4-morpholinophenyl)-2-oxo-5-oxazoline) (I), wherein the intermediate (I) is obtained by the cyclization of 3-fluoro-4-morpholinophenyl isocyanate (II) and epoxy compound (III). This process has a short process route, low cost, easy operation, and high yield, so is suitable for a large-scale industrial production.
本发明公开了一种制备利奈唑胺中间体(S)-2-(3-(3-氟-4-吗啉苯基)-2-氧代-5-噁唑啉)(I)甲基替代物的新方法,其中中间体(I)由 3-氟-4-吗啉苯基异氰酸酯(II)和环氧化合物(III)环化得到。该工艺路线短、成本低、操作简便、收率高,适合大规模工业化生产。