[A new lignan glycoside from the flower of Castanea mollissima Blume].
OBJECTIVE
To study the bioactive constituents of the flower of Castanea mollissima Blume.


METHODS
Compounds were isolated and purified by column chromatography of silica gel and TLC. Structures were determined by various spectroscopic data, including IR, 1HNMR and 13CNMR, EIMS, FABMS and HMBC as well as comparison of the data with those reported in literatures.


RESULTS
Five compounds were isolated and elucidated as myricetin (I), quercetin (II), gallic acid (III), 4-quinolinone-2-caboxylic acid (IV), (+) -isolariciresinol-9'-O-alpha-L-rhamnoside (V).


CONCLUSIONS
These compounds were separated from the flower for the first time and compound V is a new compounds, named chestnutlignansoide.
Tang
Wen-Zhao
WZ
Institute of Materia Medica, Shandong Academy of Medical Science, Jinan 250062, China. twzsd@sina.com
Ding
Xing-Bao
XB
Xin
Yi-Zhou
YZ
D029962:Fagaceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D035264:Flowers / Q000737:chemistry; D015394:Molecular Structure; D009284:Naphthols / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification; D012210:Rhamnose / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*
D005419:Flavonoids; D009284:Naphthols; C494586:isolariciresinol-9'-O-rhamnoside; C040015:myricetin; D011794:Quercetin; D012210:Rhamnose