Cymosanine, a novel C19-quassinoid from Simaba subcymosa.
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.
De Sousa
Rodrigo Primo
RP
Setor de Química de Produtos Naturais - LCQUI - CCT, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brazil.
Barbosa
Lara Fonseca
LF
De Oliveira
Angélica Ferreira
AF
Mathias
Leda
L
Braz-Filho
Raimundo
R
Vieira
Ivo José Curcino
IJ
D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D036702:Quassins / Q000737:chemistry / Q000302:isolation & purification*; D029641:Simaroubaceae / Q000737:chemistry*
D036702:Quassins; C497374:cymosanine