来自白花灯笼花的两种新查尔酮。

Two new chalcones from the flowers of Clerodendrum inerme.

作者信息

Shahabuddin Shaik Khadar, Munikishore Rachakunta, Trimurtulu Golakoti, Gunasekar Duvvuru, Devillee Alexandre, Bodo Bernard

机构信息

Natural Products Division, Department of Chemistry, Sri Venkateswara University, Tirupati-517 502, India.

出版信息

Nat Prod Commun. 2013 Apr;8(4):459-60.

PMID:23738452

Abstract

Two new chalcones, 3-hydroxy-3',4'-dimethoxychalcone (1) and 3,2'-dihydroxy-3',4'-dimethoxychalcone (2), were isolated from the flowers of Clerodendrum inerme (L.) Gaertn together with two known flavones, 7-O-methylwogonin (3) and eucalyptin (4). The structures of the new compounds 1 and 2 have been established by extensive 2D-NMR and ESI-TOFMS studies.

摘要

从假茉莉（Clerodendrum inerme (L.) Gaertn）的花朵中分离出两种新的查尔酮，即3-羟基-3',4'-二甲氧基查尔酮（1）和3,2'-二羟基-3',4'-二甲氧基查尔酮（2），同时还分离出两种已知的黄酮，即7-O-甲基汉黄芩素（3）和桉叶素（4）。通过广泛的二维核磁共振（2D-NMR）和电喷雾电离飞行时间质谱（ESI-TOFMS）研究确定了新化合物1和2的结构。