普洱茶中黄酮类化学成分研究(4)
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Chemical constitutes of flavones from Pu，erh tea
ZHANG Liang， TU Peng，fei*
(State Key Laboratory of Natural and Biomimetic Drugs， Peking University School of
Pharmaceutical Sciences， Beijing 100191， China)
[Abstract]The chemical constituents in the Pu，erh tea were isolated by various column chromatographic methods， and their structures were identified by spectral data and physic，chemical analysis. As a result， eleven flavonoids were isolated and identified as kaempferol (1)， quercetin (2)， kaempferol，3-O，β，D-glucopyranoside (3)， kaempferol，3-O，β，D-rutinoside (4)， apigenin，6-C，α，L-arabinopyranosyl，8-C，β，D-glucopyranoside (5)， vitexin，4″-O，β，D-glucopyranoside (6)， kaempferol，3-O，[α，L-rhamnopyranosyl，(1→3)-α，L-rhamnopyranosyl，(1→6)-β，D-glucopyranoside] (7)， quercetin3-O，β，D-glucopyranoside (8)， rutin (9)， quercetin，3-O，α，L-rhamnopyranoside (10)， and myricetin，3-O，β，D-glucopyranoside (11). Compounds 5，7， 10 and 11 were isolated from Pu，erh tea for the first time.
[Key words]Camellia sinensis var. assamica； flavones； chemical constituents
doi：10.4268/cjcmm20131020, http://www.100md.com(张梁 屠鹏飞)
Chemical constitutes of flavones from Pu，erh tea
ZHANG Liang， TU Peng，fei*
(State Key Laboratory of Natural and Biomimetic Drugs， Peking University School of
Pharmaceutical Sciences， Beijing 100191， China)
[Abstract]The chemical constituents in the Pu，erh tea were isolated by various column chromatographic methods， and their structures were identified by spectral data and physic，chemical analysis. As a result， eleven flavonoids were isolated and identified as kaempferol (1)， quercetin (2)， kaempferol，3-O，β，D-glucopyranoside (3)， kaempferol，3-O，β，D-rutinoside (4)， apigenin，6-C，α，L-arabinopyranosyl，8-C，β，D-glucopyranoside (5)， vitexin，4″-O，β，D-glucopyranoside (6)， kaempferol，3-O，[α，L-rhamnopyranosyl，(1→3)-α，L-rhamnopyranosyl，(1→6)-β，D-glucopyranoside] (7)， quercetin3-O，β，D-glucopyranoside (8)， rutin (9)， quercetin，3-O，α，L-rhamnopyranoside (10)， and myricetin，3-O，β，D-glucopyranoside (11). Compounds 5，7， 10 and 11 were isolated from Pu，erh tea for the first time.
[Key words]Camellia sinensis var. assamica； flavones； chemical constituents
doi：10.4268/cjcmm20131020, http://www.100md.com(张梁 屠鹏飞)