A new secoiridoid glucoside from Olea europaea

A new phenolic glucoside (1), olerikaside, and other known secoiridoid glucosides [oleuropein (2), demethyl oleuropein (3), oleoside 11-methyl ester (4), oleoside 7, 11-dimethyl ester (5), 7-β-D-glucopyranosyl 11-methyl oleoside (6), secoxyloganin (7), ilicifolioside B (8), hydroxytyrosol (9), and hydroxytyrosol glucosides (10–12)] were isolated from unprocessed olive fruits of Olea europaea cv. “Lucca”. The chemical structure of olerikaside (1) was clarified based on spectroscopy and chemical analysis data.