Phytochemistry p. 2465 - 2468 (1992)
Update date:2022-08-03
Topics:
Sheu, Shiow-Yunn
Hsu, Feng-Lin
Lin, Yu-Chan
Two novel phenol glucoside gallates, querglanin and isoquerglanin, were isolated from the leaves of Quercus glauca.From chemical and spectroscopic evidence, they were characterized as 2-iso-propyl-4-hydroxyl-5-methyl phenol 1-O-β-D-(6'-O-galloyl)glucopyranoside and 2-iso-propyl-4-hydroxyl-5-methyl phenol 1-O-β-D-(3'-O-galloyl)glucopyranoside, respectively.In addition, the occurence of seven known flavonoids was demonstrated. Key Word Index - Quercus glauca; Fagaceae; phenol glycoside gallates; 2-iso-propyl-4-hydroxyl-5-methyl phenol 1-O-β-D-(6'-O-galloyl)glucopyranoside; 2-iso-propyl-4-hydroxyl-5-methyl phenol 1-O-β-D-(3'-O-galloyl)glucopyranoside; querglanin; isoquerglanin.
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