(2S)-2-{(2S)-2-[(5-{N-[(1S)-1-(N-{(1S)-2-Methyl-1-[N-(2-pyridylmethyl)carbamoyl]propyl}carbamoyl)-2-phenylethyl]carbamoyl}(3S,4S,2R,5R)-3,4-bis(phenylmethoxy)oxolan-2-yl)carbonylamino]-3-phenylpropanoylamino}-3-methyl-N-(2-pyridylmethyl)butanamide AIDS-104161 AIDS104161