PYRROLO[2,3-D]PYRIMIDINES .2. SYNTHESIS OF SOME NEW PYRROLO[2,3-D]PYRIMIDIN-4-AMINES AND OTHER RELATED DERIVATIVES WITH MOLLUSCICIDAL PROPERTIES

Pyrrolo[2,3-d]pyrimidin-4-amine 3 has been prepared as a precursor for synthesizing the pyrrolo[2,3-d]pyrimidinium iodide salts 6, N-alkylpy rrolo[2,3-d]pyrimidin-4-amines 7, N,N-di(ethoxycarbonyl) pyrrolo[2,3-d ]pyrimidin-4-amine 9 and pyrrolo[2,3-d]pyrimidin-4-yl semicarbazides 1 1; molluscicidal activity of the synthesized products has been screene d against Biomphalaria alexandrina, Bulinus truncatus and Lymnaea cail liaudi snails.