[Study on flavanols from Glochidion hirsutum].
OBJECTIVE
To investigate the flavanols from Glochidion hirsutum.


METHODS
The column chromatographic methods were employed for the isolation and purification of the chemical constituents. The structures were elucidated by spectroscopic methods.


RESULTS
Five flavanols were isolated and identified as 3-O-(3-methylgalloyl) catechin (1), 3-O-( 3-methylgalloyl) gallocatechin (2), 3-O-galloylgallocatechin (3), gallocatechin (4), catechin (5).


CONCLUSIONS
Compound 1 is a new compound. The other four compounds were isolated from this plant for the first time.
Yang
Jin
J
Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University, Kunming 650091, China.
Yang
Xiao-Dong
XD
Yang
Shu
S
Zhao
Jing-Feng
JF
Li
Liang
L
D002392:Catechin / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D019665:Euphorbiaceae / Q000737:chemistry*; D044948:Flavonols / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
C528665:3-O-(3-methylgalloyl)catechin; D044948:Flavonols; D002392:Catechin; C057580:gallocatechol