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tert-Butyl 2-oxo-1,7-diazaspiro(3.5)nonane-7-carboxylate392331-78-152 % similar 1-Boc-4-formyl-4-methyl-piperidine189442-92-051 % similar 1-Boc-3-oxopiperazine76003-29-751 % similar 1,1-Dimethylethyl 9-oxo-3-azaspiro[5.5]undecane-3-carboxylate873924-08-451 % similar 1-(1,1-Dimethylethyl) 4-methyl 4-(aminomethyl)-1,4-piperidinedicarboxylate362703-35-351 % similar N-Boc-diethanolamine103898-11-950 % similar N-Boc-N,N-bis(2-chloroethyl)amine118753-70-150 % similar Ethyl N-boc-4-methylpiperidine-4-carboxylate189442-87-350 % similar 2,7-Diaza-spiro[4.4]nonane-2-carboxylic acid tert-butyl ester236406-49-850 % similar tert-Butyl 4-cyano-4-methylpiperidine-1-carboxylate530115-96-950 % similar 1-Boc-4-methylpiperazine53788-49-150 % similar tert-Butyl 4-oxopiperidine-1-carboxylate79099-07-350 % similar tert-Butyl 2,6-diazaspiro(3.4)octane-6-carboxylate885270-86-050 % similar tert-Butyl 4,7-diazaspiro(2.5)octane-7-carboxylate886766-28-550 % similar tert-Butyl 4-(aminomethyl)-4-hydroxypiperidine-1-carboxylate392331-66-749 % similar 1,1-Dimethylethyl 4-fluoro-4-(hydroxymethyl)-1-piperidinecarboxylate614730-97-149 % similar tert-Butyl 4-aminomethyl-4-fluoropiperidine-1-carboxylate620611-27-049 % similar 4-(2-Amino-ethyl)-piperazine-1-carboxylic acid tert-butyl ester192130-34-049 % similar 2-(tert-Butoxycarbonyl)-2,7-diazaspiro[3.5]nonane236406-55-649 % similar 1-Boc-4-methylenepiperidine159635-49-149 % similar