title: Three new cyclopeptide alkaloids from Zizyphus species.
abstract: Two new cyclopeptide alkaloids, xylopyrine-D and xylopyrine-E, from Zizyphus xylopyra and a new alkaloid, jubanine-E, from Zizyphus jujuba have been isolated and their structures were established by chemical and spectral evidences.
authors.affiliation: Department of Chemistry, S.G.R. Post Graduate College, Purvanchal University, Jaunpur, India.
authors.forename: Manoj B
authors.initials: MB
authors.lastname: Pandey
authors.forename: Ashok K
authors.initials: AK
authors.lastname: Singh
authors.forename: Jagdish P
authors.initials: JP
authors.lastname: Singh
authors.forename: Virendra P
authors.initials: VP
authors.lastname: Singh
authors.forename: Vidya B
authors.initials: VB
authors.lastname: Pandey
mesh_terms: D000470:Alkaloids / Q000737:chemistry*; D006868:Hydrolysis; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry; D031957:Ziziphus / Q000737:chemistry*
chemical_list: D000470:Alkaloids