Schwender C F, Sunday B R, Herzig D J
J Med Chem. 1979 Jan;22(1):114-6. doi: 10.1021/jm00187a026.
A new series of 11-oxo-11H-pyrido[2,1-b]quinazolinecarboxylic acids and related analogues has been synthesized and evaluated as potential antiallergy agents. In the rat PCA test, 11-oxo-11H-pyrido[2,1--b]quinazoline-8-carboxylic acid is orally active and more potent than cromolyn sodium or doxantrazole intravenously.