1(2H)-Pyrimidineacetamide,N-[(1S,3S,4S)-4-[[2-(2,6-Dimethylphenoxy)acetyl]amino]-3-hydroxy-5-phenyl-1-(phenylmethyl)pentyl]tetrahydro-.alpha.-(1-methylethyl)-2-oxo-, (alpha.1S)- & (S)-1-[(2S,4R)-2-Hydroxy-4-((1S,2R)-2-hydroxy-indan-1-ylcarbamoyl)-5-phenyl-pentyl]-4-pyridin-3-ylmethyl-piperazine-2-carboxylic acid tert-butylamide AIDS-022454 AIDS022454 LPV & IDV Lopinavir & Indinavir