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3-Oxopyrrolidine-1-carboxylic acid tert-butyl ester101385-93-744 % similar tert-Butyl 4,4-difluoropiperidine-1-carboxylate281652-10-644 % similar 1-N-Boc-4-(phenylamino)piperidine125541-22-244 % similar 1-tert-Butyl 3-methyl piperazine-1,3-dicarboxylate129799-08-244 % similar 1-tert-Butyl 3-methyl 4-oxopiperidine-1,3-dicarboxylate161491-24-344 % similar 1-(1,1-Dimethylethyl) 3-methyl (3S)-1,3-piperazinedicarboxylate314741-39-444 % similar 1-(1,1-Dimethylethyl) 3-methyl (3R)-1,3-piperazinedicarboxylate438631-77-744 % similar tert-Butyl (3R,4R)-3-amino-4-(hydroxymethyl)pyrrolidine-1-carboxylate1207853-71-144 % similar tert-Butyl 3-(2-ethoxy-2-oxoethyl)azetidine-1-carboxylate158602-35-844 % similar (1R,5S,6r)-3-(tert-Butoxycarbonyl)-3-azabicyclo[3.1.0]hexane-6-carboxylic acid1401464-07-043 % similar 3-(1,1-Dimethylethyl) (1α,5α,6α)-3-azabicyclo[3.1.0]hexane-3,6-dicarboxylate927679-54-743 % similar tert-Butyl (S)-3-(4-bromophenyl)piperidine-1-carboxylate1476776-55-243 % similar tert-Butyl 4-((pyridin-4-ylmethyl)amino)piperidine-1-carboxylate206274-24-043 % similar tert-Butyl 1-oxa-6-azaspiro(2.5)octane-6-carboxylate147804-30-643 % similar 7-Boc-2-oxa-7-azaspiro[3.5]nonane240401-27-843 % similar 1-Boc-4-methyl-piperidin-4-OL406235-30-143 % similar tert-Butyl 3,6-dihydropyridine-1(2H)-carboxylate85838-94-443 % similar tert-Butyl (2S)-2-carbamothioylpyrrolidine-1-carboxylate101410-18-843 % similar 1,1-Dimethylethyl 3,3-difluoro-1-azetidinecarboxylate1255666-59-143 % similar 7-(1,1-Dimethylethyl) 7-azaspiro[3.5]nonane-2,7-dicarboxylate873924-12-043 % similar