AIDS-171156 AIDS171156 Benzoic acid, 4-[2-[[(2S)-4,4-difluoro-2-[[[(2S,4S)-1-[(2S)-2-hydroxy-3,3-dimethyl-1-oxobutyl]-4-phenyl-2-pyrrolidinyl]carbonyl]amino]-1-oxobutyl]amino]ethyl]-3,5-difluoro-