[Study on chemical constituents in seeds of Helicia nilagirica (II)].
OBJECTIVE
To study the chemical constituents in seeds of Helicia nilagirica.


METHODS
The ethanol extract was seperated by petroleum ether, dichloromethane, n-butanol in sequence, then isolated by silica gel column chromatography. The structures were identified and elucidated by physicochemical properties and spectral analysis.


RESULTS
Five compounds were isolated from the dichloromethane and n-butanol extracts, identified as p-hydroxybenzaldehyde (1), p-hydroxybenzoic acid (2), gallic acid (3), helicide (4), 4-formylpymyl-O-beta-D-glucopyranoside (5).


CONCLUSIONS
All the compounds except IV were isolated from the plant for the first time. The compounds I, II and III were isolated from the genus Helicia for the first time.
Liu
Gui-Yan
GY
Beijing University of Traditional Chinese Medicine, Beijing 100029, China. liuguiyan2001@yahoo.com.cn
Shuang-Cheng
Zhang
Yu-Mei
YM
Xu
Ji-Min
JM
Lin
Rui-Chao
RC
D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification*; D005707:Gallic Acid / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D010226:Parabens / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D039105:Proteaceae / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry
D001547:Benzaldehydes; D010226:Parabens; D005707:Gallic Acid; C055677:helicide; C011483:4-hydroxybenzaldehyde