2-[3-[3-(S)-[[(1,1-Dioxotetrahydrothienyloxy)carbonyl]amino]-4-phenyl-2(R)-hydroxybutyl]]-N-(1,1-dimethylethyl)octahydro-1H-pyrindene-3-carboxamide AIDS-006116 AIDS006116 PyrindenCON thienyl urethane analog