(S)-4-((R)-2-Acetylamino-2-carboxy-ethanoylamino)-4-((S)-1-{(S)-3-carboxy-1-[(S)-2-cyclohexyl-1-((S)-3,3-difluoro-1-formyl-propylcarbamoyl)-ethylcarbamoyl]-propylcarbamoyl}-2,2-diphenyl-ethylcarbamoyl)-butyric acid AIDS-107415 AIDS107415