title: Xylopyrine-F, a new cyclopeptide alkaloid from Zizyphus xylopyra.
abstract: A new 14-membered ring cyclopeptide alkaloid xylopyrine-F, together with known alkaloids nummularine-P and sativanine-H, has been isolated from the root bark of Zizyphus xylopyra 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. pandeyvb@sify.com
authors.forename: Manoj B
authors.initials: MB
authors.lastname: Pandey
authors.forename: Jagdish P
authors.initials: JP
authors.lastname: Singh
authors.forename: Ashok K
authors.initials: AK
authors.lastname: Singh
authors.forename: Virendra P
authors.initials: VP
authors.lastname: Singh
mesh_terms: D000470:Alkaloids / Q000737:chemistry*; D006868:Hydrolysis; D015394:Molecular Structure; D010456:Peptides, Cyclic / Q000737:chemistry*; D024301:Plant Bark / Q000737:chemistry; D031957:Ziziphus / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D010456:Peptides, Cyclic; C532832:xylopyrine-F