Dihydropyrimidinone/1,2,3-triazole hybrid molecules: Synthesis and anti-varicella-zoster virus (VZV) evaluation.

By combining the structural features of dihydropyrimidinone and 1,2,3-triazole heterocycles, novel hybrid compounds were synthesized using a simple and convenient method. A series of novel mono and bis 1,2,3-triazole was synthesized via copper-catalyzed Huisgen azide-alkyne cycloadditions (CuAAC) under microwave irradiation. The newly synthesized compounds were evaluated for their antiviral activity against varicella-zoster virus (VZV). Compounds 6aa, 7ab, 6ba and 6da showed valuable antiviral activities, with EC50 values ranging from 3.6 to 11.3 µM against TK+ and TK- VZV and without measurable cell-growth inhibition.