Naphthalene derivatives, a process for their preparation and their use in anti-inflammatory pharmaceutical compositions
申请人:BEECHAM GROUP PLC
公开号:EP0011925A1
公开(公告)日:1980-06-11
The compounds of the formula (II):
wherein one of A is a CHOH group and B is a CHOH or CO group have been found to be effective anti-inflammatory agents. Their preparation and use is described.
式 (II) 的化合物:
其中 A 是 CHOH 基团,B 是 CHOH 或 CO 基团。本文介绍了它们的制备和使用方法。
Use of 4-substituted 2-butanones to prepare nabumetone
申请人:HOECHST CELANESE CORPORATION
公开号:EP1223156A1
公开(公告)日:2002-07-17
The palladium-catalyzed coupling of aryl and vinyl halides with vinylic compounds is disclosed. A preferred embodiment relating to the palladium catalyzed coupling of 4-substituted and 6-substituted-2-methoxynaphthalene to form nabumetone is also disclosed. The beauty of this novel reaction is that methylvinylketone, normally employed by the art directly as-is for the preparation of nabumetone, is formed in situ. We have discovered a mechanism to take advantage of the in situ formation of methylvinylketone, thus avoiding the use of expensive, toxic, and unstable methyl vinyl ketone feed. This reaction may be employed for a variety of pharmaceutically active and non-pharmaceutical compounds.