申请人:Merck & Co., Inc.
公开号:US04342782A1
公开(公告)日:1982-08-03
1-(Substituted-aminoalkoxyphenyl)-2-methylene-1-alkanones, a class of compounds possessing antiallergic propertiesfor use in the treatment of allergic conditions, such as asthma prepared by etherifying an alkanoylphenol with an aminoalkyl halide, converting the ether formed to a salt of Mannich base by reacting it with a salt of a secondary amine in the presence of formaldehyde or paraformaldehyde and treating the Mannich salt with a weak base todeaminate the same and form the final product.
1-(取代氨基烷氧基苯基)-2-亚甲基-1-烷酮,一类具有抗过敏特性的化合物,用于治疗过敏症状,如哮喘,通过用氨基烷基卤代烷酰酚醚化制备,将形成的醚与二级胺的盐在甲醛或多聚甲醛存在下反应,将Mannich盐用弱碱处理以去氨基化并形成最终产物。