title: Cymosanine, a novel C19-quassinoid from Simaba subcymosa.
abstract: Cymosanine (1) and three further known quassinoids, cedronin (2), chaparrinone (3), and simarolide (4), were isolated from the root bark of Simaba subcymosa. The structures were established by spectroscopic data, mainly 1D, 2D NMR and mass spectra.
authors.affiliation: Setor de Química de Produtos Naturais - LCQUI - CCT, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brazil.
authors.forename: Rodrigo Primo
authors.initials: RP
authors.lastname: De Sousa
authors.forename: Lara Fonseca
authors.initials: LF
authors.lastname: Barbosa
authors.forename: Angélica Ferreira
authors.initials: AF
authors.lastname: De Oliveira
authors.forename: Leda
authors.initials: L
authors.lastname: Mathias
authors.forename: Raimundo
authors.initials: R
authors.lastname: Braz-Filho
authors.forename: Ivo José Curcino
authors.initials: IJ
authors.lastname: Vieira
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D036702:Quassins / Q000737:chemistry / Q000302:isolation & purification*; D029641:Simaroubaceae / Q000737:chemistry*
chemical_list: D036702:Quassins; C497374:cymosanine