(4S,2R)-N-(tert-Butyl)-4-hydroxy-5-[(2-methylpropyl)(phenylsulfonyl)amino]-2-benzylpentanamide, ((4R)-3-{3-hydroxy-4-[(2-methylpropyl)(phenylsulfonyl)amino]butyl}(1,3-thiazolidin-4-yl))-N-(tert-butyl)carboxamide AIDS-096707 AIDS096707