(4R)-N-[(4R)-3,4-Dihydro-2H-thiochromen-4-yl]-3-{(2S,3S)-2-hydroxy-3-[(3-hydroxy-2-methylbenzoyl)amino]-4-phenylbutanoyl}-5,5-dimethyl-1,3-thiazolidine-4-carboxamide AIDS-190344 AIDS190344