tert-butyl ((1-((1-benzylpiperidin-4-yl)methyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-(4-(4-methylpiperazin-1-yl)benzyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-(anthracen-9-ylmethyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-(2-(benzyloxy)benzyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-((9-ethyl-9H-carbazol-3-yl)methyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-(4-iodobenzyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-(cyclohexylmethyl)piperidin-4-yl)methyl)carbamate

tert-butyl 4-((4-(((tert-butoxycarbonyl)amino)methyl)piperidin-1-yl)methyl)piperidine-1-carboxylate

tert-butyl ((1-(4-bromo-2-methylbenzyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-(4-bromo-3-methylbenzyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-((4-bromothiophen-2-yl)methyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-(cyclopropylmethyl)piperidin-4-yl)methyl)carbamate

tert-butyl 8-(3-hydroxybenzyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-((3-fluoropyridin-2-yl)methyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-((3,5-dimethylisoxazol-4-yl)methyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-((5-(hydroxymethyl)furan-2-yl)methyl)-2,8-diazaspiro[4.5]decane-2-carboxylate