Three new flavonoid glycosides from Pinus tabulaeformis Carr.
Three new flavonoid glycosides, named 7,8,4'-trihydroxy-3,5-dimethoxy-6-methylflavonol-8-O-β-D-glucopyranoside (1), 5,7,4'-trihydroxy-3-methoxy-6-methylflavonol-7-O-β-D-glucopyranoside (2), 3,5,7,4'-tetrahydroxy-6-methylflavonol-7-O-β-D-glucopyranoside (3), together with two known flavonoid glycosides were isolated from the needles of Pinus tabulaeformis Carr. Their structures were established on the basis of various spectroscopic analyses.
School of Pharmaceutical Science, Henan University of Traditional Chinese Medicine, Zhengzhou, China.
Wei-Sheng
WS
Feng
Chun-Lei
CL
Zhang
Xiao-Ke
XK
Zheng
Hong-Wei
HW
Li
Xin
X
Chen
D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D028223:Pinus / Q000737:chemistry*; D013237:Stereoisomerism
C556055:3,5,7,4'-tetrahydroxy-6-methylflavonol-7-O-beta-D-glucopyranoside; C556054:5,7,4'-trihydroxy-3-methoxy-6-methylflavonol-7-O-beta-D-glucopyranoside; C556053:7,8,4'-trihydroxy-3,5-dimethoxy-6-methylflavonol-8-O-beta-D-glucopyranoside; D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D006027:Glycosides