G. Dellemonache et al., CARACASANDIAMIDE, A TRUXINIC HYPOTENSIVE AGENT FROM VERBESIN-CARACASANA, Bioorganic & medicinal chemistry letters, 6(3), 1996, pp. 233-238
A second hypotensive agent from Verbesina caracasana is shown to be th
e truxinic type dimer of the previously isolated 3,4-dimethoxycinnamoy
l guanidinoamide. The new compound gave by alkaline hydrolysis a cryst
alline monoamide, which in turn by acid hydrolysis gave 3',4'-dimethox
y-beta-truxinic acid, identical with a synthetic specimen.