((2S,1R,3R,6R)-3,8-Dimethoxy-4,7,9-trioxabicyclo[4.3.0]non-2-yloxy)-N-((1S,2S)-3-{(2S,4S)-2-[N-(tert-butyl)carbamoyl]-4-chloropyrrolidinyl}-2-hydroxy-3-oxo-1-benzylpropyl)carboxamide AHPBA deriv. AIDS-059665 AIDS059665 [3-(S)-[2(R)-Methoxy-(4(S),5(R)-methoxymethylene)tetrahydropyranyl)oxy]carbonyl-(2S,3S)-AHPBA-4(S)-Cl-Pro-NH-t-Bu