Rutaecarpine is the major alkaloid component of Wu-Chu-Yu, a well known Chinese herbal drug. It has been reported that rutaecarpine causes the vasodilator, hypotensive effects by stimulation of CGRP synthesis and release via activation of TRPV1. In present study, 23 rutaecarpine analogues were designed and synthesized. Then, the vasodilator effects of theses compounds were screened by rat aortic ring experiment. The result showed that the 14-N atom of rutaecarpine might be the key site for the activity. The 5-carbonyl might make lower contribution to the effect. And simple substitute in indole-ring or quinazo-line-ring would not enhance the vasodilator effect unless in proper position with proper group. One of these compounds, 10-methylrutaecarpine, exhibited similar effect with rutaecarpine. Further functional experiments showed its vasodilator and hypotensive effect were related to the stimulation of CGRP release via activation of TRPV1. The vasodilator effects of these compounds were evaluated and the structure-activity relationship was elucidated for the first time. The results suggested a new direction of valuable TRPV1 agonist as anti-hypertensive drugs. (C) 2009 Elsevier Ltd. All rights reserved.
New topoisomerases inhibitors: Synthesis of rutaecarpine derivatives and their inhibitory activity against topoisomerases
作者:Seung Ill Kim、Seung Ho Lee、Eung-Seok Lee、Chong-Soon Lee、Yurngdong Jahng
DOI:10.1007/s12272-012-0504-1
日期:2012.5
A series of rutaecarpine derivatives were prepared by employing previously reported methods and their inhibitoryactivitiesagainst topoisomerase I and II were evaluated. Among them, strongly cytotoxic 10-bromorutaecarpine and 3-chlororutaecarpine showed strong inhibitoryactivitiesagainst topo I and II.
采用先前报道的方法制备了一系列芸香碱衍生物,并评估了它们对拓扑异构酶 I 和 II 的抑制活性。其中,强细胞毒性的 10-bromorutaecarpine 和 3-chlororutaecarpine 对拓扑 I 和 II 显示出强烈的抑制活性。