Diazaheterocyclopurines used as anti-broncho spasmatics and vasodilators
申请人:Mead Johnson & Company
公开号:US04489078A1
公开(公告)日:1984-12-18
Imidazopyrimidinones and other diazaheterocyclopyrimidinones having an additional fused imidazole or triazole ring have utility as bronchodilators, mediator release inhibitors, phosphodiesterase inhibitors, and peripheral vasodilators. They are orally active and useful in the prophylaxis and treatment of asthma. A preferred compound is 4-[(4-chlorophenyl)methyl]-6,7-dihydro-3H-imidazo[1,2-a]purin-9(4H)-one.