2-Thiophenecarboxylic acid, 3-[[2-[[[(1S)-1-[[[(1S)-1-[[[2-[3-[(E)-2-carboxyethenyl]phenyl]ethyl]amino]carbonyl]-3,3-difluoropropyl]amino]carbonyl]-3-methylbutyl]amino]carbonyl]-1,2,3,4-tetrahydro-2-quinolinyl]methyl]- AIDS-171180 AIDS171180