Abstract
7-(Substituted-phenyl)amino-5,8-quinazolinediones (4) were synthesized by the substitution of 7-methoxy-5,8-quinazolinedione (5) with arylamines. All synthesized 5,8-quinazolinediones 4 showed a potent and efficacious inhibitory effect on the acetylcholine (ACh)-induced vasorelaxation of rat aorta with the endothelium. The quinones, at a low concentration of 0.1 μM, reduced the maximal response with an increase of EC50 values for ACh. The results indicate that quinones 4 are potent inhibitors of endothelium-dependent vasorelaxation.
| Original language | English |
|---|---|
| Pages (from-to) | 605-614 |
| Number of pages | 10 |
| Journal | Medicinal Chemistry Research |
| Volume | 10 |
| Issue number | 9 |
| State | Published - 2001 |