Bioactive monoterpene glycosides conjugated with gallic acid from the leaves of Eucalyptus globulus

Two monoterpene glycosides conjugated with gallic acid [globulusin A (1) and B (2)], together with four known compounds, were isolated from hot-water extracts of the leaves of Eucalyptus globulus. Globulusin A (1) and eucaglobulin (4) exhibited significant antioxidant, anti-inflammatory and anti-melanogenesis activity.