Study on flavanols from Glochidion hirsutum

OBJECTIVE To investigate the flavanols from Glochidion hirsutum. METHOD The column chromatographic methods were employed for the isolation and purification of the chemical constituents. The structures were elucidated by spectroscopic methods. RESULT 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). CONCLUSION Compound 1 is a new compound. The other four compounds were isolated from this plant for the first time.