(2S,4S)-4-Chloro-1-[(2S,3S)-2-hydroxy-3-{[1-(3-hydroxy-2-methyl-phenyl)-methanoyl]-amino}-4-(4-naphthalen-2-yl-phenyl)-butanoyl]-pyrrolidine-2-carboxylic acid tert-butylamide AIDS-085520 AIDS085520