title: Structural elucidation and NMR assignments of a new pyrrolizidine alkaloid from Crotalaria vitellina Ker Gawl.
abstract: A new pyrrolizidine alkaloid, named crotavitelin, was isolated from fruits of Crotalaria vitellina, Fabaceae (Papilionoideae). The structure was established by spectroscopic techniques such as one-dimensional and two-dimensional NMR, IR, and MS.
authors.affiliation: Departamento de Ciências Farmacêuticas, Universidade Federal da Paraiba, 58051-970, João Pessoa, PB, Brazil.
authors.forename: Denise Aline
authors.initials: DA
authors.lastname: Casimiro Bezerra
authors.forename: Josean
authors.initials: J
authors.lastname: Fechine Tavares
authors.forename: Paula Ferreira
authors.initials: PF
authors.lastname: dos Santos
authors.forename: Marianna Vieira Sobral
authors.initials: MV
authors.lastname: Castello Branco
authors.forename: Maria
authors.initials: M
authors.lastname: de Fátima Agra
authors.forename: Fernanda Lima
authors.initials: FL
authors.lastname: Subrinho
authors.forename: Raimundo
authors.initials: R
authors.lastname: Braz-Filho
authors.forename: Marcelo Sobral
authors.initials: MS
authors.lastname: da Silva
mesh_terms: D029864:Crotalaria / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D011763:Pyrrolizidine Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D013055:Spectrophotometry, Infrared
chemical_list: D011763:Pyrrolizidine Alkaloids
keywords: 13C NMR; 1H NMR; Crotalaria vitellina; pyrrolizidine alkaloids