New Flavonoid Glycosides from Elsholtzia rugulosa Hemsl.
Gaimei She, Zhiqin Guo, Hai‐Ning Lv, Dongmei She
Abstract
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Gaimei She, Zhiqin Guo, Hai‐Ning Lv, Dongmei She
Abstract
Open-access reader
Elsholtzia rugulosa Hemsl. is known in China as a local herbal tea, medicinal herb and honey plant. Chemical examination of E. rugulosa led to the isolation of two new flavonoid glycosides, apigenin 4'-O-alpha-D-glucopyranoside (1) and 5,7,3',4'-tetrahydroxy-5'-C-prenylflavone-7-O-beta-D-glucopyranoside (2), together with nine known flavonoids. Their structures were elucidated on the basis of spectroscopic evidence.
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Elsholtzia rugulosa Hemsl. is known in China as a local herbal tea, medicinal herb and honey plant. Chemical examination of E. rugulosa led to the isolation of two new flavonoid glycosides, apigenin 4'-O-alpha-D-glucopyranoside (1) and 5,7,3',4'-tetrahydroxy-5'-C-prenylflavone-7-O-beta-D-glucopyranoside (2), together with nine known flavonoids. Their structures were elucidated on the basis of spectroscopic evidence.
Key concepts: Apigenin, Glycoside, Herb, Flavonoid, Traditional medicine, Botany, Chemistry, Medicinal herbs