Solvent-Free Synthesis of Pyrimidine Nucleoside-Aminophosphonate Hybrids and Their Biological Activity Evaluation.

A novel and highly efficient one-pot three-component synthesis of α-aminophosphonates under neat condition was developed. By employing this method, hybrid compounds of aminophosphonate with pyrimidine nucleosides were synthesized in good to excellent yields starting from 5-formyl-2′-deoxyuridine, aniline and dimethyl phosphite. The antiviral and antileishmanial activities of these novel hybrid compounds were also studied but none were found to be active.