(2R,3S)-2-[(3S,4S)-3-[(4-{3-[3-(Aminomethyl)benzyl]-1-ethyl-1H-pyrazol-5-yl}piperidin-1-yl)methyl]-4-(3-fluorophenyl)pyrrolidin-1-yl]-3-methylpentanoic acid AIDS-193178 AIDS193178