title: A new 14-membered cyclopeptide alkaloid from Zizyphus oxyphylla.
abstract: One new 14-membered frangulanine-type cyclopeptide alkaloid, oxyphyl line-A (1) has been isolated from the stem bark of Zizyphus oxyphylla together with the known 13-membered cyclopeptide, nummularine R (2). The structure was established on the basis of spectral studies particularly 2D NMR.
authors: PCSIR, Jamrud Road, Peshawar-25120, Pakistan.
authors: Inayat-Ur-Rahman
authors: Murad Ali
authors: MA
authors: Khan
authors: M
authors: M
authors: Arfan
authors: Gul
authors: G
authors: Akhtar
authors: Lajber
authors: L
authors: Khan
authors: Viqar Uddin
authors: VU
authors: Ahmad
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D002855:Chromatography, Thin Layer; D009682:Magnetic Resonance Spectroscopy; D010455:Peptides / Q000737:chemistry* / Q000302:isolation & purification; D010456:Peptides, Cyclic / Q000737:chemistry* / Q000302:isolation & purification; D024301:Plant Bark / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D031957:Ziziphus / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D010455:Peptides; D010456:Peptides, Cyclic; C519441:oxyphylline A