Regioselective synthesis and cannabinoid receptor binding affinity of N-alkylated 4,5-diaryl-1,2,3-triazoles

A series of N1- and N2-substituted 4-(2,4-dichlorophenyl)-5-(4-chlorophenyl)-1,2,3-triazoles were regioselectively synthesized to explore the binding motifs of the diaryl-1,2,3-triazole scaffold at CB1 receptors. The N1 analogs were regioselectively constructed via Click chemistry to furnish analogs with modest CB1 receptor affinity (K i