Two acylated flavonoid glycosides from the leaves of Quercus dentata.
Two new acylated flavonoid glycosides have been isolated from the leaves of Quercus dentata Thunb. On the basis of chemical and spectral data, the structures of the compounds have been elucidated as kaempferol 3-O-(2", 4"-diacetyl-3"-cis-p-coumaroyl-6"-trans-p-coumaroyl)-beta-D-glucopyranoside (1), and kaempferol 3-O-(2"-trans-p-coumaroyl-3", 4"-diacetyl-6"-cisp-coumaroyl)-beta-D-glucopyranoside (2).
School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, No. 232 Waihuan Road, Guangzhou, Guangdong Province 510006, PR China.
Ling-Li
LL
Wang
Mei-Xiang
MX
Jiang
Sui-Xu
SX
Xu
Qi-Shi
QS
Sun
Guang-Yao
GY
Zeng
Ying-Jun
YJ
Zhou
D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D044949:Kaempferols / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D029963:Quercus / Q000737:chemistry*
D005960:Glucosides; D044949:Kaempferols