Chemical and Pharmaceutical Bulletin 2011
Erythrinan alkaloids from seeds of Erythrina velutina.
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Abstracto
Four new Erythrinan alkaloids (1-4) were isolated from the seeds of Erythrina velutina. The structures of these new compounds 1-4 were elucidated by spectroscopic methods including 2D-NMR. Three of four were found to be novel sulfated Erythrinan alkaloids.