为长毛籽远志Polygala wattersii的质量控制和进一步的开发提供科学依据,我们对它的根进行了系统的化学成分研究。利用砖胶、SephadexLH-20、制备薄层色谱及半制备液相等多种色谱分离技术进行分离和纯化,应用El—MS、ESI—MS、1HNMR及13CNMR等现代波谱技术并与文献相对照等方法鉴定化合物的结构。共从长毛籽远志根中分离鉴定了23个化合物,包括11个[口山]酮类:1,3-二羟基[口山]酮(1),1-羟基-3-甲氧基[口山]酮(2),1,3-羟基-2-甲氧基[口山]酮(3),1,3,7-三羟基-2-甲氧基[口山]酮(4),1,3,6-三羟基-2,7-二甲氧基[口山]酮(5),1,6,7-三羟基-2,3-二甲氧基[口山]酮(6),1,7-二羟基-2,3-亚甲二氧基[口山]酮(7),1,7-二甲氧基[口山]酮(8),1,2,3-三甲氧基[口山]酮(9),1-甲氧基-2,3-亚甲二氧基[口山]酮(10),6-羟基-1-甲氧基-2,3-亚甲二氧基[口山]酮(11);9个糖酯类:3'-O-阿魏酰基-6-O-乙酰蔗糖(12),arillatose B(13),sibficoseA5(14),sibricoseA6(1S),3',6-二-O-芥子酰基蔗糖(16),tenufolisideA(17),3'-O-3,4,5-三甲氧基肉桂酰基-6—O-对甲氧基苯甲酰基蔗糖(18),glomeratoseA(19),1-O--对香甄酰基葡萄糖(20);两个三萜皂苷类:bayogenin-3—O-glucoside(21)和tenufolin(22)及1个苯丙素类:芥了酸(23)。其中,化合物2和12为首次从远志属中分离得到,除化合物16外其它所有化合物均为首次从该种植物中分离得到。
Abstract: To investigate the chemical constituents of the roots of Polygala wattersii Hance, the separation and purification were performed by solvent extraction and repeated column chromatography (CC) on silica gel, Sephadex LH-20 and macroporous resin D101, preparative TLC and semi-preparative HPLC. The structures were identified by spectroscopic analysis and comparison of their 1H and 13C NMR data with those reported in literatures. Twenty-three known compounds, including eleven xanthones (1-11), nine sugar esters (12-20), two triterpenoid saponins (21 and 22) and one phenylpropanoid (23) were isolated and their structures were identified as 1,3-dihydroxyxanthone (1), 1-hydroxy-3-methoxyxanthone (2), 1,3-dihydroxy-2-methoxyxanthone (3), 1,3,7-trihydroxy-2- methoxyxanthone (4), 1,3,6-trihydroxy-2,7-dimethoxyxanthone (5), 1,6,7-trihydroxy-2,3-dimethoxyxanthone (6), 1,7-dihydroxy- 2,3-methylenedioxyxanthone (7), 1,7-dimethoxyxanthone (8), 1,2,3-trimethoxyxanthone (9), 1-methoxy-2,3-methylenedioxyxanthone (10), 6-hydroxy-0-methoxy-2,3-methylenedioxyxanthone (11), 3'-O-feruloyl-6-O-acetyl sucrose (12), arillatose B (13), sibricose A5 (14), sibricose A6 (15), 3',6-di-O-sinapoyl sucrose (16), tenufoliside A (17), 3'-O-3,4,5-trimethoxycinnamoyl-6-O-p-methoxybenzoyl sucrose (18), glomeratose A (19), 1-O-p-coumaroyl-D-glucopyranose (20), bayogenin-3-O-glucoside (21), tenufolin (22), and sinapic acid (23). Among them, compounds 2 and 12 were obtained from genus Polygala for the first time, and except compound 16, all others were isolated from this species for the first time.