2-[3-[3-(S)-[[(1,1-Dioxotetrahydro-4H-thiopyranyloxy)carbonyl]amino]-4-phenyl-2(R)-hydroxybutyl]]-N-(1,1-dimethylethyl)decahydro-3-isoqinolinecarboxamide AIDS-006117 AIDS006117 IsoquinCON pyranyl urethane analog