134450-39-8 5(S)-(N-(2-Pyridyl)-methylaminocarbonyl-L-valinyl)-amino-3,3-difluoro-1,6-diphenyl-4-oxo-hexane AIDS-002717 AIDS002717 Butanamide, N-[3,3-difluoro-2-oxo-5-phenyl-1-(phenylmethyl)pentyl]-3-methyl-2-[[[(2-pyridinylmethyl)amino]carbonyl]amino]-, [S-(R*,R*)]-