5-{(2S)-2-[N-(tert-Butyl)carbamoyl]-4-[1-methyl-1-(5-(3-pyridyl)(1,3-oxazol-2-yl))ethyl]piperazinyl}(4S,2R)-N-((1S,2R)-2-hydroxyindanyl)-4-hydroxy-2-benzylpentanamide AIDS-171922 AIDS171922