Journal
JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH
Volume 11, Issue 5, Pages 426-432Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10286020902877747
Keywords
Trollius chinensis; Rannuculaceae; 2''-O-veratroylisoswertisin; 3''-O-2-methylbutyrylisoswertiajaponin; 3''-O-2-methylbutyrylvitexin
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Three new flavone C-glycosides with the substitution of the unusual acyl, 2''-O-veratroylisoswertisin (1), 3''-O-2-methylbutyrylisoswertiajaponin (2), and 3''-O-2-methylbutyrylvitexin (3), together with the known compounds of 2''-O-2-methylbutyrylisoswertisin (4), 3''-O-2-methylbutyrylisoswertisin (5), and trollisin I (6) were isolated from the antibacterial fraction of the aqueous extract of the flowers of Trollius chinensis. The structural elucidations of these compounds were carried out by a detailed analysis of the NMR and MS spectra.
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