title: Constituents of the Stems of Arbutus unedo.
abstract: The dried stems of ARBUTUS UNEDO have been investigated for secondary metabolites. In addition to the previously reported lupeol, ursolic acid, monotropein, unedoside, and stilbericoside, the iridoids geniposide ( 2) and monotropein methyl ester ( 1) have been isolated for the first time from this source. Betulinic acid ( 4) has also been isolated for the first time from this plant.
authors.affiliation: Department of Pharmacy, University of Manchester, Manchester M13 9PL, U. K.
authors.forename: G A
authors.initials: GA
authors.lastname: Karikas
authors.forename: M R
authors.initials: MR
authors.lastname: Euerby
authors.forename: R D
authors.initials: RD
authors.lastname: Waigh