tert-butyl 2-{4-[(acetylamino)methyl]benzyl}-1-hydrazine carboxylate

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

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

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

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