A new 14-membered cyclopeptide alkaloid from Zizyphus oxyphylla.
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.
Inayat-Ur-Rahman
PCSIR, Jamrud Road, Peshawar-25120, Pakistan.
Khan
Murad Ali
MA
Arfan
M
M
Akhtar
Gul
G
Khan
Lajber
L
Ahmad
Viqar Uddin
VU
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*
D000470:Alkaloids; D010455:Peptides; D010456:Peptides, Cyclic; C519441:oxyphylline A