title: Isolation and characterization of crotosparsamide, a new cyclic nonapeptide from Croton sparsiflorus.
abstract: Crotosparsamide (1), a new cyclic nonapeptide, has been isolated from the n-butanol soluble sub-fraction of Croton sparsiflorus along with p-hydroxy methylcinnamate and kaempferol, which are reported for the first time from this species. Their structures were determined by chemical and spectral studies including ESIMS, and 1D and 2D NMR spectroscopic data.
authors.affiliation: International Center for Chemical and Biological Sciences, H. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan.
authors.forename: Rashad
authors.initials: R
authors.lastname: Mehmood
authors.forename: Abdul
authors.initials: A
authors.lastname: Malik
mesh_terms: D029802:Croton / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D010456:Peptides, Cyclic / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D010456:Peptides, Cyclic; C556281:crotosparsamide