Hexahydroimidazo-pyrimidines, a new class of alkaloids from Alchornea javanensis
Abstract
The first naturally-occurring hexahydroimidazo-[1,2-a]-pyrimidines, alkaloids (Ia) and (IIIa), and the guanidines (IVa) and (IVb) have been obtained from Alchornea javanensis(BI.) Muell.-Arg.