(S)-1-[(2S,4S)-2-Hydroxy-4-((3S,4S)-3-hydroxy-1-benzopyran-4-ylcarbamoyl)-5-1,3,4-oxadiazol-2-yl-pentyl]-4-{1-[5-(5-methoxy-pyridin-3-yl)-oxazol-2-yl]-1-methyl-ethyl}-piperazine-2-carboxylic acid (2,2,2-trifluoro-ethyl)-amide AIDS-219957 AIDS219957