New flavonoid glycosides from Elsholtzia rugulosa Hemsl.
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.
She
Gaimei
G
School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China. shegaimei@126.com
Guo
Zhiqin
Z
Lv
Haining
H
She
Dongmei
D
D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D019686:Lamiaceae / Q000737:chemistry*; D015394:Molecular Structure
C546533:5,7,3',4'-tetrahydroxy-5'-C-prenylflavone-7-O-beta-D-glucopyranoside; D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D006027:Glycosides; C546532:apigenin 4'-O-alpha-D-glucopyranoside