AIDS-089204 AIDS089204 MDL74538 & MDL28574 N-{(1R)-2-Methyl-1-[(phenylmethoxy)methyl]propyl}-4-{(2S)-3-methyl-2-[(phenylmethoxy)carbonylamino]butanoylamino}-2,2-difluoro-3-oxo-5-[4-(phenylmethoxy)phenyl]pentanamide & Butanoic acid, (1S, 6S, 7S, 8R, 8aR)-octahydro-1,7,8-trihydroxy-6-indolizinyl ester