申请人:Chinoin Gyogyszer es Vecyeszeti Termekek Gyara Rt.
公开号:US04260612A1
公开(公告)日:1981-04-07
Antiallergic and antiasthmatic compounds of the formula ##STR1## of which 9-phenylamino-6-methyl-4-oxo-6,7-dihydro-4H-pyrido(1,2-a)pyrimidine-3-carb oxylic acid and optically active antipodes and salts thereof are examples.
抗过敏和抗哮喘化合物的分子式为##STR1##,其中9-苯胺基-6-甲基-4-氧代-6,7-二氢-4H-吡啶并[1,2-a]嘧啶-3-羧酸及其光学异构体和盐是其中的例子。