Chemical constituents of lipophilic parts in water extrct from stem of Mahonia fortunei / 中草药

ABSTRACT

Objective To study the chemical constituents of lipophilic parts in water extracts from the stem of Mahonia fortunei. Methods The compounds were isolated and purified by repeated column chromatography on silica gel and high performance liquid chromatography, and their structures were determined by spectroscopic data analysis. Results Thirty-eight compounds were obtained from lipophilic parts in water extracts from the stem of M. fortunei and identified as maltol (1), 3-hydroxy-4-methoxyphenylethanol (2), syringylethanone (3), 1-hydroxy-3-(4-hydroxy-3-methoxyphenyl)-2-propanone (4), α-hydroxypropiosyringone (5), corydaldine (6), zhebeiresinol (7), vanillic acid (8), springic acid (9), noroxyhydrastinine (10), (+)-syringaresinol (11), episyringaresinol (12), schisandrin (13), neoechinulin A (14), 8-oxyjatrorrhizine (15), 8-oxyberberine (16), 5-hydroxymaltol (17), methyl-5- hydroxy-2-pyridinecarboxylate (18), vomifoliol (19), 2,3-dihydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-1-propanone (20), oleracein E (21), acortatarin A (22), 5-epi-acortatarin A (23), 5-(methoxymethyl)-1H-pyrrole-2-carbaldehyde (24), (+)-lyoniresinol (25), (−)-secoisolariciresinol (26), ciwujiatone (27), protocatechuic acid (28), adenosine (29), 3,4,5-trimethoxyphenyl-1-O-β-D- glucopyranoside (30), 2-(4-hydroxy-3-methoxyphenyl) ethyl-O-β-D-glucopyranoside (31), tortoside B (32), oldhamioside (33), (+)-syringaresinol-4′-O-β-D-glucopyranoside (34), episyringaresinol-4′-O-β-D-glucopyranoside (35), berberine (36), 3,4,5-trimethoxyphenyl-(6′-O-syringoyl)-O-β-D-glucopyranoside (37), and salidroside (38), respectively. Conclusion Compounds 3—7, 13—15, 17—19, 21—27, 29, 31, 33, and 38, are isolated from the genus Mahonia for the first time. Moreover, the nuclear magnetic resonance data of compound 15 is assigned for the first time.