Naturally Occurring Bioactive o-Heterocycles: A Quest For New Sources

G.Brahmachari, S.Mondal, S.K.J

Abstract

Limnophila heterophylla and L. rugosa (Scrophulariaceae) were established as new sources of natural flavonoids, respectively of nevadensin (5,7-dihydroxy-6,8,4'-trimethoxyflavone) and salvigenin (5-hydroxy-6,7,4'- trimethoxyflavone). Their structures were characterized on the basis of spectral studies.