| abstract |
A novel series of N-(5-tetrazolyl)-1-oxo-1H-6-alkoxypyrimido[1,2-a]quinoline-2-carboxamides of the formula <IMAGE> wherein each of R1 and R2 is hydrogen, lower alkyl, lower alkoxy, fluoro or chloro; R3 is chloro, bromo or lower alkoxy; R1 and R2 when taken together are alky lenedioxy of one to two carbon atoms; intermediates therefor and the pharmaceutically-acceptable cationic salts thereof; and their use as anti-allergy agents. |