(3R,3aS,5R,6aR)-5-(((4-nitrophenoxy)carbonyl)oxy)hexahydro-2H-cyclopenta[b]furan-3-yl dimethylcarbamate

(3R,3aS,5R,6aR)-5-((((2S,3R)-3-hydroxy-4-((N-isobutyl-4-methoxyphenyl)sulfonamido)-1-phenylbutan-2-yl)carbamoyl)oxy)hexahydro-2H-cyclopenta[b]furan-3-yl dimethylcarbamate