来自美丽灰叶的黄酮类化合物。

Flavonoids from Tephrosia calophylla.

作者信息

Reddy Ramireddy V Narahari, Khalivulla Shaik I, Reddy Bandi A K, Reddy Mopuru V Bhaskar, Gunasekar Duvvuru, Deville Alexandre, Bodo Bernard

机构信息

Natural Products Division, Department of Chemistry, Sri Venkateswara University, Tirupati 517502, India.

出版信息

Nat Prod Commun. 2009 Jan;4(1):59-62.

PMID:19370876

Abstract

Two new flavanones, (2S)-5-hydroxy-7,4'-di-O-(gamma,gamma-dimethylallyl)flavanone (1) and 6-hydroxy-E-3-(2,5-dimethoxybenzylidine)-2',5'-dimethoxyflavanone (2), together with three known compounds, tephrowatsin C, afrormosin and kaempferol 3-O-beta-D-glucopyranoside were isolated from the roots of Tephrosia calophylla. The structures of 1 and 2 were established by extensive 2D NMR spectral studies.

摘要

从美叶灰毛豆的根部分离得到了两种新的黄烷酮，即(2S)-5-羟基-7,4'-二-O-(γ,γ-二甲基烯丙基)黄烷酮(1)和6-羟基-E-3-(2,5-二甲氧基亚苄基)-2',5'-二甲氧基黄烷酮(2)，以及三种已知化合物，即灰毛豆素C、非洲红豆素和山奈酚3-O-β-D-葡萄糖苷。通过广泛的二维核磁共振光谱研究确定了1和2的结构。