Pyrazole alkaloids from Newbouldia laevis

Phytochemistry
1994.0

Abstract

Phytochemical analysis of the root bark of Newbouldia laevis revealed the presence of four pyrazole alkaloids. These were characterized using various spectroscopic data as withasomnine, and the novel 4'-hydroxy-withasomnine, newbouldine and 4'-hydroxynewbouldine.

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