PROCESS FOR PREPARING A BENZOYL Benzeneacetamide derivative

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专利权人:

MEDICHEM; S.A.

发明人:

TOJO SUAREZ, GABRIEL,GAVALDA ESCUDE, ANA

申请号：

AT09762052

公开号：

AT555080T

申请日:

2009.06.12

申请国别(地区):

AT

年份:

2012

代理人:

摘要：

Disclosed is a process for preparing anti-inflammatory compound nepafenac comprising preparing a compound of formula (V) wherein a N-halosuccinimide is used as the halogenating agent, followed by desulfurization using Raney Nickel. Also disclosed is a polymorphic form B of 2-amino-3-benzoyl-&alpha；-(methylthio)-benzeneacetamide (i.e., a compound of formula (V) wherein R is methyl

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