4(1H)-Pyrimidinone, 6-[(3,5-dimethylphenyl)thio]-5-ethyl-2,3-dihydro-1-[(2-hydroxyethoxy)methyl]-2-thioxo- 5-Et-3',5'-DiMeHEPT-S 6-[(3,5-Dimethylphenyl)thio]-5-ethyl-1-[(2-hydroxyethoxy)methyl]-2-thiouracil AIDS-002915 AIDS002915 E-HEPU-SdM HEPT deriv.