Six new acylated anthocyanins from red radish (Raphanus sativus).

Six new acylated anthocyanins (1—6) were isolated along with the three known congeners (7—9) from the fresh roots of red radishes (Raphanus sativus L.) cultivated by our group. Their chemical structures were elucidated by spectroscopic properties. Among the six new anthocyanins, the five constituents (1, 2, 4—6) were shown to contain the malonyl function at 6-OH in the glucopyranosyl residue linked to C-5 in the pelargonidin nucleus.