AIDS-223712 AIDS223712 Hexahydrofuro[2,3-b]furan-3-yl {(1S,2R)-1-benzyl-3-[({2-[({[2-(dimethylamino)ethyl]amino}carbonyl)amino]-1H-benzimidazol-5-yl}sulfonyl)(isobutyl)amino]-2-hydroxypropyl}carbamate