Acylated anthocyanins from leaves of Oxalis triangularis

Five novel anthocyanins, the 3-(6-(4-malonylrhamnosyl)glucoside)-5-glucoside (2), the 3-(6-rhamnosylglucoside)-5-(6-malonylglucoside) (3), the 3-(6-(4-malonylrhamnosyl)glucoside)-5-(6-malonylglucoside) (4), the 3-(6-(4-malonylrhamnosyl)glucoside) (5) and the 3-(6-(Z)-pcoumaroylglucoside)-5-glucoside (6) of malvidin have been isolated from methanolic extracts of leaves of Oxalis triangularis.