tert-butyl 2-{4-[(acetylamino)methyl]benzyl}-2-[(cyclopentylamino)carbonyl]-1-hydrazinecarboxylate

tert-butyl 2-{4-[(acetylamino)methyl]benzyl}-2-(1-azepanylcarbonyl)-1-hydrazinecarboxylate

N-(4-{[2-(2-naphthylsulfonyl)-1-(1-piperidinylcarbonyl)hydrazino]methyl}benzyl)acetamide

N-(4-{[1-[(2-methyl-1-piperidinyl)carbonyl]-2-(2-naphthylsulfonyl)hydrazino]methyl}benzyl)acetamide

tert-butyl 2-{4-[(acetylamino)methyl]benzyl}-2-[(cycloheptylamino)carbonyl]-1-hydrazinecarboxylate