title: A new epimeric pair of mono-THF annonaceous acetogenins from Goniothalamus gardneri.
abstract: From the roots of Goniothalamus gardneri Hook f. et. Thoms (Annonaceae), we have isolated a novel epimeric pair, gardnerinin ( 1) and 34- EPI-gardnerinin ( 1'), characterized by the presence of a gamma-hydroxymethyl-gamma-lactone moiety. These compounds represent an unusual type of mono-THF Annonaceous acetogenins, bearing one flanking hydroxy group on the hydrocarbon side, and another hydroxy group on the lactone side, that is only one carbon away from the THF ring.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China.
authors.forename: Y
authors.initials: Y
authors.lastname: Chen
authors.forename: R R
authors.initials: RR
authors.lastname: Chen
authors.forename: Z
authors.initials: Z
authors.lastname: Jiang
authors.forename: D Q
authors.initials: DQ
authors.lastname: Yu