FREMGANGSMAATE FOR FREMSTILLING AV SUBSTITUERTE IMIDAZO(2,1-B)KINAZOLIN-5(3H)-ONER OG BESLEKTEDE TRICYKLISKE FORBINDELSER.

摘要

The present invention is directed to a group of compounds which are imidazo[2,1-b]quinazolin-5(3H)-ones, related tricyclic compounds, and pharmaceutically acceptable salts thereof. These compounds are useful as bronchodilators. These compounds are prepared by the reaction of an appropriate hydrazine with an appropriate 1-substituted-2- methyl-2- imidazoline or chemically equivalent compound.