AIDS-013887 AIDS013887 Butanedioic acid, 2,2-dimethyl-, 4-[(3.beta.)-28-hydroxy-28-oxolup-20(30)-en-3-yl] ester & (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 PA-457 & Indinavir