(S)-1-[(2S,4R)-2-Hydroxy-4-((1S,2R)-2-hydroxy-indan-1-ylcarbamoyl)-5-pyridin-3-yl-pentyl]-4-pyridin-3-ylmethyl-piperazine-2-carboxylic acid tert-butylamide AIDS-059354 AIDS059354 Bis-pyridyl analog