tert-butyl 8-(5-methyl-2-phenylhex-2-en-1-yl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-(2-(1,3-dioxoisoindolin-2-yl)ethyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-((5-(2-fluorophenyl)-1H-pyrrol-3-yl)methyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-(4-morpholinobenzyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

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

tert-butyl 8-(5-allyl-2-hydroxy-3-methoxybenzyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-(2,4-dinitrobenzyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

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

tert-butyl 8-(2,3,4-trimethoxybenzyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

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

tert-butyl 8-(4-bromo-2-fluorobenzyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

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

tert-butyl 8-(4-(4-methylpiperazin-1-yl)benzyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-(anthracen-9-ylmethyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-(2-(benzyloxy)benzyl)-2,8-diazaspiro[4.5]decane-2-carboxylate

tert-butyl 8-((9-ethyl-9H-carbazol-3-yl)methyl)-2,8-diazaspiro[4.5]decane-2-carboxylate