Chiral separation, configurational identification and antihypertensive evaluation of (±)-7,8-dihydroxy-3-methyl-isochromanone-4
作者:Renren Bai、Jie Liu、Yao Zhu、Xue Yang、Chen Yang、Lingyi Kong、Xiaobing Wang、Hengyuan Zhang、Hequan Yao、Mingqin Shen、Xiaoming Wu、Jinyi Xu
DOI:10.1016/j.bmcl.2012.08.040
日期:2012.10
(+/-)-7,8-Dihydroxy-3-methyl-isochromanone-4 [(+/-)-XJP] is a natural antihypertensive product contained in banana (Musa sapientum L.) peel. (-)-XJP and (+)-XJP were first obtained by chiral resolution, meanwhile circular dichroism (CD) calculations and chiral synthesis were employed to investigate the absolute configuration. The results indicated that the absolute configuration of (+)-XJP is S-configured and the absolute configuration of (-)-XJP is R-configured. Furthermore, the evaluation of antihypertensive effects in vivo proved that R-(-)-XJP was more potent than S-(+)-XJP and [(+/-)-XJP]. (c) 2012 Elsevier Ltd. All rights reserved.
(±)-7,8-二羟基-3-甲基异香豆素-4 [(±)-XJP] 是一种存在于香蕉(Musa sapientum L.)外皮中的天然抗高血压产物。(-)-XJP 和 (+)-XJP 首先通过手性拆分首次获得,同时利用圆二色光谱(CD)计算和手性合成来研究它们的绝对构型。结果表明,(+)-XJP 的绝对构型为 S 构型,而 (-)-XJP 的绝对构型为 R 构型。此外,抗高血压的活体效应评估证明,R-(-)-XJP 比 S-(+)-XJP 和 [(±)-XJP] 更有效。© 2012 Elsevier Ltd. 保留所有权利。