AIDS-171057 AIDS171057 L-Prolinamide, N-[(2-methylpropoxy)carbonyl]-L-valyl-N-[(1S)-1-[[[2-(4-carboxy-2,6-difluorophenyl)ethyl]amino]carbonyl]-3,3-difluoropropyl]-4-[(2-methoxyethoxy)methoxy]-, (4R)-