A new alkaloid, sellowiine (N-1-demethyl-20-deethyl suaveoline), was o
btained from leaves of Rauwolfia sellowii collected at two different l
ocations in southern Brazil. Also obtained were the known alkaloids, p
erakine, raucaffrinoline, vomilenine, 19 alpha,20 alpha-epoxy-akuammic
ine, picrinine and 12-demethoxytabernulosine. The NMR spectra of the a
lkaloids were assigned completely.