Antiallergic and antiasthmatic compounds of the formula <IMAGE> I of which 9-phenylamino-6-methyl-4-oxo-6,7-dihydro-4H-pyrido(1,2-a)pyrimidine-3- carboxylic acid and optically active antipodes and salts thereof are examples.
申请公布号
US4260612(A)
申请公布日期
1981.04.07
申请号
US19780967957
申请日期
1978.12.11
申请人
CHINOIN GYOGYSZER ES VECYESZETI TERMEKEK GYARA RT.