1-Piperazineacetamide, alpha-butyl-N-[(1S,2S,4S)-4-[(butylamino)carbonyl]-1-(cyclohexylmethyl)-2-hydroxy-5-methylhexyl]-4-[(4-methyl-1-piperazinyl)carbonyl]-2-oxo-3-(phenylmethyl)-, (alphaS,3R)- A-70450 AIDS-122626 AIDS122626