Isolation of phenolic compounds and spectroscopic analysis of a new lignan from Trachelospermum asiaticum var. intermedium.
作者:SANSEI NISHIBE、KAZUKO OKABE、SUEO HISADA
DOI:10.1248/cpb.29.2078
日期:——
A new lignan 1 and two phenolic compounds, scopoletin and vanillic acid, were isolated from the stems of Trachelospermum asiaticum NAKAI var. intermedium NAKAI (Apocynaceae). The structure of 1 was elucidated as (2R, 3R) 2-4"-hydroxy-3"-methoxybenzyl-3-3', 4', 5'-trimethoxybenzylbutyrolactone by analysis of the carbon-13 nuclear magnetic resonance, mass and circular dichroism spectra.
从柿树科植物柿树(Trachelospermum asiaticum NAKAI var. intermedium NAKAI)的茎中分离出一种新的木质素 1 和两种酚类化合物--莨菪亭(scopoletin)和香草酸(vanillic acid)。通过碳-13 核磁共振、质谱和圆二色光谱分析,阐明了 1 的结构为 (2R, 3R) 2-4"-hydroxy-3"-methoxybenzyl-3-3', 4', 5'-trimethoxybenzylbutyrolactone。