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Flavonoid glucosides from the hairy roots of Catharanthus roseus
Ill-Min Chung1, Ateeque Ahmad, Mohd Ali
1Department of Applied Life Science, Konkuk University, Seoul, Korea.
Abstract:
Four new flavonoid glucosides, 3',4'-di-O-methylquercetin-7-O-[(4''-->13''')-2''',6''',10''',14'''-tetramethylhexadec-13'''-ol-14'''-enyl]-beta-D-glucopyranoside (1), 4'-O-methylkaempferol-3-O-[(4''-->13''')- 2''',6''',10''',14'''-tetramethylhexadecan-13'''-olyl]-beta-D-glucopyranoside (2), 3',4'-di-O-methylbutin-7-O-[(6''-->1''')-3''',11'''-dimethyl-7'''-methylenedodeca-3''',10'''-dienyl]-beta-D-glucopyranoside (3), and 4'-O-methylbutin-7-O-[(6''-->1''')-3''',11'''-dimethyl-7'''-hydroxymethylenedodecanyl]-beta-D-glucopyranoside (4), along with the three known compounds were isolated from the methanol extract of Catharanthus roseus hairy roots. Their structures were elucidated spectroscopically. The new flavonoid glucosides inhibited both MMP-9 activity and TNF-alpha production in THP-1 cells treated with lipopolysaccharide.
