tert-butyl 8-((1H-imidazol-4-yl)methyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-((1H-pyrrol-2-yl)methyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

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

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

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

tert-butyl ((1-((4-methylthiazol-5-yl)methyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-((5-(hydroxymethyl)furan-2-yl)methyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-((3,5-dimethylisoxazol-4-yl)methyl)piperidin-4-yl)methyl)carbamate

tert-butyl ((1-((3-fluoropyridin-2-yl)methyl)piperidin-4-yl)methyl)carbamate

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

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

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

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

tert-butyl ((1-((1-methyl-1H-pyrazol-4-yl)methyl)piperidin-4-yl)methyl)carbamate

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

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