Pharmaceutical Biology 2000
Tetrahydroprotoberberine and aporphine alkaloids from rollinia leptopetala.
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Abstract
Tetrahydrojatrorrhizine, discretamine, anonaine and roemerine were isolated from the roots of Rollinia leptopetala R. E. Fries. They were identified and characterized by nuclear magnetic resonance spectroscopy ( 1 H and 13 C) with the aid of two-dimensional techniques ( 1 H- 1 H COSY, HETCOR, HMQC and HMBC). With the exception of tetrahydrojatrorrhizine, the presence of these alkaloids in R. leptopetala has not been reported previously.