Synthesis and Cytotoxic Activity of 6-(Substituted-Phenyl)Amino-5,8-Quinazolinediones
摘要:
6-Arylamino-5,8-quinazolinediones were synthesized and evaluated for in vitro cytotoxic activity against human solid tumor cell lines A549, SK-OV-3, SK-MEL-2, XF498 and HCT-15. Most of the 6-arylamino-5,8-quinazolinediones exhibited potent activity against the cell lines HCT-15 and SK-MEL-2.
6-Arylamino-5,8-quinazolinediones as potent inhibitors of endothelium-dependent vasorelaxation
作者:Chung-Kyu Ryu、Keun-Hwa Shin、Ji-Hui Seo、Hwa-Jung Kim
DOI:10.1016/s0223-5234(01)01290-9
日期:2002.1
6-(Substituted-phenyl)amino-5,8-quinazolinediones (3) were synthesised by regioselective substitution of 5,8-quinazolinedione (5) with appropriate arylamines in the presence of Ce(III) ions. All synthesised 5,8-quinazolinediones 3 showed a potent and efficacious inhibitory effect on the acetylcholine (ACh)-induced vasorelaxation of rat aorta with the endothelium. The quinones 3, at a low concentration of 0.1 muM, reduced the maximal response with increase of EC50 values for ACh. The results indicate that quinones 3 are potent inhibitors of endothelium-dependent vasorelaxation. (C) 2002 Editions. scientifiques et medicales Elsevier SAS. All rights reserved.