VERFAHREN ZUR HERSTELLUNG NEUER CHINAZOLON- DERIVATE UND IHRER SALZE

摘要

This invention relates to the novel compound 11-oxo-11H-pyrido[2,1-b]quinazoline-2-carboxylic acid of the formula and non-toxic, pharmacologically acceptable salts thereof, as well as to pharmaceutical composition containing these compounds as active ingredients, and methods of using them as antiallergics.