title: Supinidine viridiflorates from the roots of Chromolaena pulchella.
abstract: The alkaloid extract from the roots of Chromolaena pulchella provided two new pyrrolizidine alkaloids, elucidated as (-)-supinidine triviridiflorate (1) and (-)-supinidine diviridiflorate (2) based on their physical and spectroscopic properties. Their absolute configuration was determined by chemical correlation with (-)-supinidine (3) and (+)-viridifloric acid (4).
authors.affiliation: Area Académica de Química, Universidad Autónoma del Estado de Hidalgo, Km 4.5 Carretera Pachuca-Tulancingo, Mineral de la Reforma, Hidalgo 42184, Mexico.
authors.forename: Mario A
authors.initials: MA
authors.lastname: Gómez-Hurtado
authors.affiliation: Area Académica de Química, Universidad Autónoma del Estado de Hidalgo, Km 4.5 Carretera Pachuca-Tulancingo, Mineral de la Reforma, Hidalgo 42184, Mexico.
authors.forename: J Martín
authors.initials: JM
authors.lastname: Torres-Valencia
authors.affiliation: Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Apartado 137, Morelia, Michoacán 58000, Mexico.
authors.forename: Rosa E
authors.initials: RE
authors.lastname: del Rió
authors.affiliation: Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Apartado 137, Morelia, Michoacán 58000, Mexico.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Rodríguez-Garcí
authors.affiliation: Universidad de Sevilla, Profesor García González No. 2, Sevilla 41012, Spain.
authors.forename: Virginia
authors.initials: V
authors.lastname: Motilva
authors.affiliation: Universidad de Sevilla, Profesor García González No. 2, Sevilla 41012, Spain
authors.forename: Sofía
authors.initials: S
authors.lastname: García-Mauriño
authors.affiliation: Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 Mexico.
authors.forename: Carlos M
authors.initials: CM
authors.lastname: Cerda-García-Rojas
authors.affiliation: Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 Mexico.
authors.forename: Pedro
authors.initials: P
authors.lastname: Joseph-Nathan
mesh_terms: D036604:Chromolaena / Q000737:chemistry*; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D011763:Pyrrolizidine Alkaloids / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D011763:Pyrrolizidine Alkaloids