Two novel tetracycles, cassibiphenols A and B from the flowers of Cassia siamea
Two novel tetracycles, cassibiphenols A and B from the flowers of Cassia siamea
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DOI：
10.1016/j.tetlet.2014.01.023
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发表时间：
2014-02-12
影响因子：
1.8
通讯作者：
Morita, Hiroshi
中科院分区：
文献类型：
--
作者：
Deguchi, Jun;Sasaki, Tadahiro;Morita, Hiroshi
对决明子（Cassia siamea）花的化学成分进行了研究，分离出两个新的四环化合物，分别为5-（2-羟丙基）苯-1，3-二醇，邻苯二酚A（1）和B（2）。通过1D、2D NMR和HRMS光谱分析来阐明结构。1和2的四环核的合成导致确定I和2的C-12的绝对构型。(C)2014爱思唯尔有限公司版权所有。
Chemical investigation of the flowers of Cassia siamea (Leguminosae), resulted in the isolation of two novel tetracycles connecting 5-(2-hydroxypropyl)benzene-1,3-diol, cassibiphenols A (1) and B (2). The structures were elucidated by analysis of the 1D, 2D NMR, and HRMS spectra. Synthesis of a tetracyclic core of 1 and 2 led to determine the absolute configuration of I and C-12 of 2. (C) 2014 Elsevier Ltd. All rights reserved.