AIDS-113196 AIDS113196 D-Erythro-pentitol, 1,2,3,5-tetradeoxy-5-[(2S)-2-[[(1,1-dimethylethyl)amino]carbonyl]-4-[(2-ethyl-4-pyridinyl)methyl]-1-piperazinyl]-3-[[[[(2R,3R)-tetrahydro-2-(1-methylethyl)-1,1-dioxido-3-thienyl]oxy]carbonyl]amino]-