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1,1-Dimethylethyl 2,6-diazaspiro[3.3]heptane-2-carboxylate1041026-70-346 % similar 1,1-Dimethylethyl (2R)-2-ethyl-1-piperazinecarboxylate393781-70-946 % similar tert-Butyl 4,7-diazaspiro(2.5)octane-7-carboxylate886766-28-545 % similar 1-Boc-4-methylpiperazine53788-49-145 % similar tert-Butyl 2-(hydroxymethyl)piperazine-1-carboxylate205434-75-945 % similar 4-N-Boc-4-N-methyl-aminopiperidine108612-54-044 % similar tert-Butyl (2-bromoethyl)(methyl)carbamate263410-12-444 % similar 1-Boc-2-piperazinecarboxylic acid1214196-85-644 % similar (R)-4-Boc-piperazine-3-carboxylic acid278788-60-644 % similar 1,1-Dimethylethyl (2S)-2-(2-methylpropyl)-1-piperazinecarboxylate674792-06-444 % similar (2S)-1-(tert-Butoxycarbonyl)-2-methylpyrrolidine-2-carboxylic acid103336-06-743 % similar (R)-Boc-2-methylproline166170-15-643 % similar 1-[(tert-Butoxy)carbonyl]-2-methylpyrrolidine-2-carboxylic acid203869-80-143 % similar 1-Boc-4-spiro-[3-(2-pyrrolidinone)] piperidine268550-48-743 % similar 1-Boc-4-methylaminopiperidine147539-41-143 % similar tert-Butyl 2,2-dimethyl-4-oxopiperidine-1-carboxylate346593-03-143 % similar 1-Boc-3-oxopiperazine76003-29-743 % similar 1-(1,1-Dimethylethyl) 2-methyl 1,2-piperazinedicarboxylate129799-15-143 % similar tert-Butyl 3,8-diazabicyclo[3.2.1]octane-8-carboxylate149771-44-843 % similar tert-Butyl 4,4-difluoropiperidine-1-carboxylate281652-10-643 % similar