Three new flavanols from Daphne giraldii.
Three new flavanols, 5-p-hydroxybenzoxy-7-hydroxyl-8-ethoxycarbonyl-( - )-afzelechin (1), 5-p-hydroxybenzoxy-7-(2, 3, 5-trihydroxybenzoxy)-8-ethoxycarbonyl-( - )-afzelechin (2), and 5-p-hydroxybenzoxy-7-(2, 3, 5-trihydroxybenzoxy)-8-methoxycarbonyl-( - )-afzelechin (3), were isolated from Daphne giraldii Nitsche and their structures were elucidated by spectroscopic methods, especially by 2D-NMR and MS analyses.
Su
Juan
J
Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai, China.
Wu
Zhi-Jun
ZJ
Shen
Yun-Heng
YH
Zhang
Chuan
C
Li
Hui-Liang
HL
Liu
Rui-Hui
RH
Zhang
Wei-Dong
WD
D032364:Daphne / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure
D004365:Drugs, Chinese Herbal; D005419:Flavonoids; C404987:flavan-3-ol