AHPBA deriv. AIDS-059658 AIDS059658 N-((1S,2S)-3-{(2S,4S)-2-[N-(tert-Butyl)carbamoyl]-4-chloropyrrolidinyl}-2-hydroxy-3-oxo-1-benzylpropyl)(1,1-dioxothiolan-3(RS)-yloxy)carboxamide [3-(R,S)-(1,1-Dioxo-tetrahydrothiophenyl)oxy]carbonyl-(2S,3S)-AHPBA-4(S)-Cl-Pro-NH-t-Bu