Imidazoquinazoline derivatives

摘要

PCT No. PCT/JP97/03023 Sec. 371 Date Apr. 27, 1998 Sec. 102(e) Date Apr. 27, 1998 PCT Filed Aug. 29, 1997 PCT Pub. No. WO98/08848 PCT Pub. Date Mar. 5, 1998Imidazoquinoline derivatives of the formula (wherein X may be O or S) provide selective cyclic guanosine 3',5' monophosphate (cGMP)-specific phosphodiesterase (PDE) inhibitory activity. The compounds are useful for treating or ameliorating cardiovascular disease such as thrombosis, angina pectoris, hypertension, heart failure and arterial sclerosis, as well as asthma, impotence and the like.