来自苦竹（Pleioblastus amarus (Keng) keng f.）干燥叶片的两种新化合物

Two new compounds from the dry leaves of Pleioblastus amarus (Keng) keng f.

作者信息

Sun Jia, Tang Feng, Yue Yong-De, Xun Hang, Guo Xue-Feng

机构信息

a State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan , Beijing 100102 , China.

出版信息

J Asian Nat Prod Res. 2014;16(9):930-5. doi: 10.1080/10286020.2014.944513.

DOI:10.1080/10286020.2014.944513

PMID:25253092

Abstract

Two new compounds, xylitol 1-O-(6'-O-p-hydroxylbenzoyl)-glucopyranoside (1) and bambulignan B (2), together with three known ones gastrodin (3), glucovanillin (4), and rel-(7S,7'R,8R,8'S)-4,4'-dihydroxy-3,3',5,5'-tetramethoxy-7,7'-epoxyligna-9,9'-diol-9(or)9'-O-β-glucopyranoside (5), were isolated from the 95% EtOH extract of the dry leaves of Pleioblastus amarus (Keng) keng f. Their structures were determined by UV, IR, HR-ESI-MS, CD, and 1D and 2D NMR data analyses as well as GC experiments.

摘要

从苦竹（Pleioblastus amarus (Keng) keng f.）干燥叶片的95%乙醇提取物中分离得到两种新化合物，木糖醇1-O-(6'-O-对羟基苯甲酰基)-吡喃葡萄糖苷（1）和竹节香附素B（2），以及三种已知化合物天麻素（3）、葡糖香草醛（4）和rel-(7S,7'R,8R,8'S)-4,4'-二羟基-3,3',5,5'-四甲氧基-7,7'-环氧木脂素-9,9'-二醇-9(或)9'-O-β-吡喃葡萄糖苷（5）。通过紫外光谱、红外光谱、高分辨电喷雾电离质谱、圆二色光谱、一维和二维核磁共振数据分析以及气相色谱实验确定了它们的结构。