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
[(S)-3-[(4-Amino-benzenesulfonyl)-isobutyl-amino]-2-hydroxy-1-((R)-phenylmethyl)-propyl]-carbamic acid (3R,3aS,6aR)-(hexahydro-furo[2,3-b]furan-3-yl) ester