title: Chemical constituents and biological studies of Origanum vulgare Linn.
abstract: Bioassay-guided isolation of methanolic extract of the leaves of Origanum vulgare Linn., yielded two protocatechuic acid ester derivatives, origanol A (1) and origanol B (2) along with ursolic acid (3), oleanolic acid (4), β-sitosterol (5), and triacontanol (6). Structures of the compound were established based on physical and spectral data (UV, IR, (1)H and (13)C NMR and mass). Origanol A (1) showed significant mushroom tyrosinase inhibition activity.
authors.affiliation: CavinKare Research Centre, Ekkattuthangal, Chennai - 600 032, India.
authors.forename: Gottumukkala
authors.initials: G
authors.lastname: Venkateswara Rao
authors.forename: T
authors.initials: T
authors.lastname: Mukhopadhyay
authors.forename: T
authors.initials: T
authors.lastname: Annamalai
authors.forename: N
authors.initials: N
authors.lastname: Radhakrishnan
authors.forename: M R
authors.initials: MR
authors.lastname: Sahoo