申请人:Sterling Drug Inc.
公开号:US04939138A1
公开(公告)日:1990-07-03
2- and 3-Aminomethyl-6-arylcarbonyl-2,3-dihydropyrrolo[1,2,3-de]-1,4-benzoxazines , useful as analgesic agents, are prepared either by reaction of a 2- or 3-aminomethyl-2,3-dihydropyrrolo[1,2,3-de]-1,4-benzoxazine with an arylcarboxylic acid halide in the presence of a Lewis acid or by reaction of a 2- or 3-aminomethyl-4-amino-3,4-dihydro-2H-1,4-benzoxazine with a 1-lower-alkyl-3-aryl-1,3-diketone or with a .beta.-aryl-.beta.-ketopropionaldehyde under dehydrating conditions and heating the resulting hydrazone in an acid medium.
2-和3-氨甲基-6-芳基羰基-2,3-二氢吡咯并[1,2,3-de]-1,4-苯并噁嗪是一种有用的镇痛剂,可以通过在路易斯酸存在下将2-或3-氨甲基-2,3-二氢吡咯并[1,2,3-de]-1,4-苯并噁嗪与芳基羧酸卤化物反应,或通过在脱水条件下将2-或3-氨甲基-4-氨基-3,4-二氢-2H-1,4-苯并噁嗪与1-低烷基-3-芳基-1,3-二酮或β-芳基-β-酮丙醛反应,并在酸性介质中加热得到。