珙桐树枝皮中的两种新型酚类水溶性成分。

Two new phenolic water-soluble constituents from branch bark of Davidia involucrata.

作者信息

Wu Zu-Jian, Ouyang Ming-An, Wang Shi-Bin

机构信息

Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P.R. China.

出版信息

Nat Prod Res. 2008 Apr 15;22(6):483-8. doi: 10.1080/14786410600906426.

DOI:10.1080/14786410600906426

PMID:18415854

Abstract

Two new phenolic water-soluble constituents, involcranoside A (1) and involcranoside B (2) have been isolated along with five known phenolic compounds: 3,4-dimethoxyphenyl-O-beta-D-gluco-pyranoside (3), picein (4), and 1,4-dihydroxy-3-methoxy-phenyl-4-O-beta-D-glucopyranoside (5), leonuriside A (6) and 4-hydroxy-3-methoxybenzoic acid (7) from the branch bark of Davidia involucrata. Identification of their structures was achieved by 1D and 2D NMR experiments, including (1)H-(1)H COSY, NOESY, HMQC and HMBC methods and FAB mass spectral data.

摘要

从珙桐的枝皮中分离出两种新的酚类水溶性成分，珙桐糖苷A（1）和珙桐糖苷B（2），以及五种已知的酚类化合物：3,4-二甲氧基苯基-O-β-D-吡喃葡萄糖苷（3）、松脂醇二甲醚（4）、1,4-二羟基-3-甲氧基苯基-4-O-β-D-吡喃葡萄糖苷（5）、益母草苷A（6）和4-羟基-3-甲氧基苯甲酸（7）。通过一维和二维核磁共振实验，包括（1）H-（1）H COSY、NOESY、HMQC和HMBC方法以及快原子轰击质谱数据确定了它们的结构。