(3R,3aS,6aR or 3S,3aR,6aS) Hexahydrofuro[2,3-b]furan-3-yl N-((1S,2R)-3-(4-amino-2,2-dimethylbutyl){(4-methoxyphenyl)sulfonyl] amino-1-benzyl-2-hydroxypropyl) carbamate AIDS-095477 AIDS095477