1H-Indole-1-pentanoic acid, 2-[[[(1S)-1-[[[2-(4-carboxy-2-chlorophenyl)ethyl]amino]carbonyl]-3,3-difluoropropyl]amino]carbonyl]-2,3-dihydro-g-[[(2-methylpropoxy)carbonyl]amino]-d-oxo-, (gR,2S)- AIDS-171051 AIDS171051