申请人:Riker Laboratories, Inc.
公开号:US04013692A1
公开(公告)日:1977-03-22
Benzofurans and 2,3-dihydrobenzofurans optionally substituted at the 2 position by halogen or lower alkyl, substituted at the 3 position by optionally substituted phenyl, substituted on the benzo ring by a lower alkanoic acid group or a salt, ester or amide thereof, optionally substituted on the carbon of said lower alkanoic group bonded to the benzo ring, and optionally substituted on the benzo ring, are active anti-inflammatory, anti-pyretic and analgesic agents or are intermediates in the preparation of such agents.
2,3-二氢苯并呋喃和苯并呋喃可以选择性地在2位被卤素或较低的烷基取代,在3位被可选择性取代的苯基取代,在苯环上被较低的烷基酸基或其盐、酯或酰胺取代,在连接苯环的较低烷基群上可以选择性地被取代,在苯环上也可以选择性地被取代。它们是活性抗炎、退热和镇痛剂,或者是制备这种药剂的中间体。