(S)-1-[(2S,4R)-2-Hydroxy-4-((1S,2R)-2-hydroxy-indan-1-ylcarbamoyl)-5-pyridin-4-yl-pentyl]-4-thieno[2,3-b]thiophen-2-ylmethyl-piperazine-2-carboxylic acid tert-butylamide AIDS-059365 AIDS059365 Pyridyl analog