Solvent-free synthesis of pyrimidine nucleoside-aminophosphonate hybrids and their biological activity evaluation.

A novel and highly efficient one-pot three-component synthesis of alpha-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.