1 0ZD N,N'-bis(2-[(biphenyl-4ylsulfonyl)[(2r)-1-hydroxy-3-methyl-1-oxobutan-2-yl]-amino]ethyl)benzene-1,3-dicarboxamide 1.000 2 L29 N,N'-bis(2-{(biphenyl-4-ylsulfonyl)[(2r)-1-(hydroxyamino)-3-methyl-1-oxobutan-2-yl]amino}ethyl)benzene-1,3-dicarboxamide (non-preferred name) 0.909