RESUMO
Two new cardiac glycosides called cheiranthosides VI (2) and VII (3) were isolated together with a known one, glucoerysimoside (1) from the seeds of Erysimum cheiranthoides. Based on spectroscopic data, the structures of 2 and 3 were characterized as periplogenin 3-O-beta-D-glucopyranosyl(1-->4)-beta-D-fucopyranoside and periplogenin 3-O-beta-D-glucopyranosyl(1-->4)-beta-D-antiaropyranoside, respectively.
Assuntos
Glicosídeos Cardíacos/isolamento & purificação , Plantas Medicinais/química , Sequência de Carboidratos , Cromatografia em Camada Fina , Espectroscopia de Ressonância Magnética , Metanol/química , Dados de Sequência Molecular , Sementes/química , Solventes , Espectrometria de Massas de Bombardeamento Rápido de ÁtomosRESUMO
Three new cardiac glycosides were isolated along with two known cardenolides from the seeds of Erysimum cheiranthoides. The new ones were characterized by spectral methods as 16 beta-hydroxystrophanthidin (strophadogenin) 3-O-beta-glucopyranosyl-(1-->4)-beta-boiviopyranoside, strophadogenin 3-O-alpha-rhamnopyranosyl-(1-->4)-beta-digitoxopyranoside and strophanthidin 3-O-alpha-rhamnopyranosyl-(1-->4)-beta-digitoxopyranoside, named cheiranthosides I, II and III, respectively.
