(3R,3aS,6aR)-tetrahydro-2H-furo[2,3-b]furan-3-yl (2S,3R)-4-(4-amino-N-neopentylphenylsulfonamido)-3-hydroxy-1-phenylbutan-2-ylcarbamate
N-((1S,2R)-3-(((4-aminophenyl)sulfonyl)(2-methylpropyl)amino)-2-hydroxy-1-benzylpropyl)((1S,2R,5R)-4,6-dioxabicyclo(3.3.0)oct-2-yloxy)carboxamide