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tert-Butyl 2,9-diazaspiro(5.5)undecane-9-carboxylate1023595-19-8100 % similar 2,8-Diaza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester236406-39-684 % similar tert-Butyl 2,7-diazaspiro[3.5]nonane-7-carboxylate896464-16-776 % similar 2,7-Diaza-spiro[4.4]nonane-2-carboxylic acid tert-butyl ester236406-49-871 % similar tert-Butyl 2,7-diazaspiro(3.5)nonane-7-carboxylate hydrochloride1023301-84-970 % similar tert-Butyl 3,9-diazaspiro[5.5]undecane-3-carboxylate173405-78-269 % similar tert-Butyl 2,6-diazaspiro(3.4)octane-6-carboxylate885270-86-068 % similar tert-Butyl 2,6-diazaspiro[3.4]octane-2-carboxylate885270-84-863 % similar tert-Butyl 1,4-diazepane-1-carboxylate112275-50-063 % similar tert-Butyl 2,8-diazaspiro[4.5]decane-2-carboxylate336191-17-462 % similar tert-Butyl piperazine-1-carboxylate57260-71-661 % similar 7-Boc-2-oxa-7-azaspiro[3.5]nonane240401-27-860 % similar tert-Butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate203661-69-259 % similar 1,1-Dimethylethyl 2,6-diazaspiro[3.3]heptane-2-carboxylate1041026-70-357 % similar 1,1-Dimethylethyl 9-oxo-3-azaspiro[5.5]undecane-3-carboxylate873924-08-457 % similar 1,1-Dimethylethyl 1-pyrrolidinecarboxylate86953-79-957 % similar 1,1-Dimethylethyl 1-piperidinecarboxylate75844-69-855 % similar 2-(tert-Butoxycarbonyl)-2,7-diazaspiro[3.5]nonane236406-55-655 % similar tert-Butyl 4,4-difluoropiperidine-1-carboxylate281652-10-654 % similar 1-Boc-4-spiro-[3-(2-pyrrolidinone)] piperidine268550-48-753 % similar