(4R)-N-[(4S)-3,4-Dihydro-2H-chromen-4-yl]-3-((2S,3S)-2-hydroxy-4-phenyl-3-{[(2S)-tetrahydrofuran-2-ylcarbonyl]amino}butanoyl)-5,5-dimethyl-1,3-thiazolidine-4-carboxamide AIDS-190586 AIDS190586