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New Flavonoid Glycosides from Elsholtzia rugulosa Hemsl.
School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China
The Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100049, China
* Author to whom correspondence should be addressed.
Received: 21 September 2009; in revised form: 12 October 2009 / Accepted: 20 October 2009 / Published: 20 October 2009
Abstract: 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-α-D-glucopyranoside (1) and 5,7,3',4'-tetrahydroxy-5'-C-prenylflavone-7-O-β-D-glucopyranoside (2), together with nine known flavonoids. Their structures were elucidated on the basis of spectroscopic evidence.
Keywords: Elsholtzia rugulos; flavonoid glycosides; apigenin 4'-O-α-D-glucopyranoside; 5,7,3',4'-tetrahydroxy-5'-C-prenylflavone-7-O-β-D-glucopyranoside
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She, G.; Guo, Z.; Lv, H.; She, D. New Flavonoid Glycosides from Elsholtzia rugulosa Hemsl.. Molecules 2009, 14, 4190-4196.
She G, Guo Z, Lv H, She D. New Flavonoid Glycosides from Elsholtzia rugulosa Hemsl.. Molecules. 2009; 14(10):4190-4196.
She, Gaimei; Guo, Zhiqin; Lv, Haining; She, Dongmei. 2009. "New Flavonoid Glycosides from Elsholtzia rugulosa Hemsl.." Molecules 14, no. 10: 4190-4196.