Phenolics and iridoids of lippia alba

Abstract

The phytochemical investigation of polar extracts of Lippia alba led to the isolation of a new acetylated flavonoid, apigenin-7-O-[(3-O-acetyl)β-D- glucopyranuronyl(1→2)]-β-D-glucopyranuronide, and of seventeen known compounds: seven iridoids (theveside, geniposidic acid, shanzhiside methyl ester, caryoptoside, 8-epi-loganin, mussaenoside and geniposide), six phenylpropanoids (cistanoside F, forsythoside B, calceolarioside E, acteoside, isoacteoside and 2-acetylacteoside) and four flavonoids (apigenin-7-O- glucuronide, luteolin-7-O-glucuronide, apigenin-7-O-diglucuronide and luteolin-7-O-diglucuronide).