methyl 3-({1-[(cycloheptylamino)carbonyl]hydrazino}methyl)-1-piperidinecarboxylate

methyl 3-{[1-[(cycloheptylamino)carbonyl]-2-(2-naphthylsulfonyl)hydrazino]methyl}-1-piperidinecarboxylate

N-cycloheptyl-2-(2-naphthylsulfonyl)-1-(3-piperidinylmethyl)-1-hydrazinecarboxamide

N,N'-bis-Boc-S-methyl-isothiourea

methyl 3-({2-(tert-butoxycarbonyl)-1-[(cycloheptylamino)carbonyl]hydrazino}methyl)-1-piperidinecarboxylate