RESUMO

The stem and roots of Hornschuchia obliqua provided two new alkaloids, 4,5-didehydroguadiscine and demethoxyguadiscine. Four known alkaloids, roemerine, guadiscine, liriodenine and cleistopholine were also isolated. The structures of the novel compounds were elucidated by spectroscopic analysis, including 2D NMR and MS.

Assuntos

Alcaloides/química , Annonaceae , Fitoterapia , Extratos Vegetais/química , Humanos , Espectroscopia de Ressonância Magnética , Espectrometria de Massas , Raízes de Plantas , Caules de Planta