In an attempt to discover anti-HIV agents with much reduced cytotoxicity from the currently available HIV-reverse transcriptase inhibitors, AZT conjugates of cholanic acids, 2- imidazolidone-4-carboxylic acid and its derivatives, and N, N′-disubstituted 5-hydroxy- tetrahydropyrimidin-2-ones have been synthesized and their anti-HIV profiles determined with CEM-SS cell line. The AZT conjugates with 2-imidazolidone-4-carboxylic acid and 2- ...