tert-Butyl (1S,2R)-1-benzyl-2-hydroxy-3-[isobutyl[(4-nitrophenyl)sulfonyl]amino]propyl]carbamate

tert-butyl (2s,3r)-3-hydroxy-4-(n-isobutyl-4-nitrophenylsulfonamido)-1-phenylbutan-2-ylcarbamate ; carbamic acid,n-[(1s,2r)-2-hydroxy-3-[(2-methylpropyl)[(4-nitrophenyl)sulfonyl]amino]-1-(phenylmethyl)propyl]-,1,1-dimethylethyl ester ; [(1s,2r)-1-benzyl-2-hydroxy-3-[isobutyl[(4-nitro-phenyl)sulfonyl)]amino]propyl]-carbamic acid tert-butyl ester ; n-[(1s,2r)-2-hydroxy-3-[(2-methylpropyl)[(4-nitrophenyl)sulfonyl]amino]-1-(phenylmethyl)propyl]-carbamic acid 1,1-dimethylethyl ester ; tert-butyl [(1s,2r)-1-benzyl-2-hydroxy-3-[isobutyl[(4-nitrophenyl)sulfonyl]amino]propyl]carbamate ; tert-butyl ((2s,3r)-3-hydroxy-4-(n-isobutyl-4-nitro-phenylsulfonamido)-1-phenylbutan-2-yl)carbama ; "(1s,2r)-[1-benzyl-3-[isobutyl(4-nitrobenzenesulfonyl)amino]-2-hydroxypropyl]carbamic acid tert-butyl ester