Synthesis, biological evaluation and quantitative structure-activities relationship of flavonoids as vasorelaxant agents
摘要:
A series of flavonoid derivatives were designed, synthesized. Their vasorelaxant activities were evaluated experimentally against rat aorta rings pretreated with phenylephrine (PE). Among them, 6-hydroxy-8-allyl- 4'-chloro-flavanone 8q exhibited the highest vasodilatory activity (EC50 = 4.6 mu M, E-max = 95.1%). The 3D-QSAR analysis was carried out by comparative molecular field analysis (CoMFA) method, and a statistically reliable model with good predictive power (r(2) = 0.872 and q(cv)(2) = 0.496) was established. The contour plots of CoMFA model provide a good insight into the structure-activity relationships of these compounds and may be used to design more potent flavonoids derivatives as vasorelaxant agents. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis, biological evaluation and quantitative structure-activities relationship of flavonoids as vasorelaxant agents
作者:Xiaowu Dong、Tao Liu、Jingying Yan、Peng Wu、Jing Chen、Yongzhou Hu
DOI:10.1016/j.bmc.2008.11.052
日期:2009.1
A series of flavonoid derivatives were designed, synthesized. Their vasorelaxant activities were evaluated experimentally against rat aorta rings pretreated with phenylephrine (PE). Among them, 6-hydroxy-8-allyl- 4'-chloro-flavanone 8q exhibited the highest vasodilatory activity (EC50 = 4.6 mu M, E-max = 95.1%). The 3D-QSAR analysis was carried out by comparative molecular field analysis (CoMFA) method, and a statistically reliable model with good predictive power (r(2) = 0.872 and q(cv)(2) = 0.496) was established. The contour plots of CoMFA model provide a good insight into the structure-activity relationships of these compounds and may be used to design more potent flavonoids derivatives as vasorelaxant agents. (C) 2008 Elsevier Ltd. All rights reserved.