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tert-Butyl 2-cyanopiperidine-1-carboxylate153749-89-446 % similar (S)-1-Boc-pyrrolidine-3-carboxylic acid methyl ester313706-15-946 % similar 1-tert-Butyl 3-methyl (3R)-pyrrolidine-1,3-dicarboxylate441717-40-446 % similar Methyl N-boc-piperidine-3-carboxylate148763-41-145 % similar tert-Butyl 2-cyano-7-azaspiro[3.5]nonane-7-carboxylate203662-66-245 % similar 1-(1,1-Dimethylethyl) 4-methyl 1,4-piperidinedicarboxylate124443-68-145 % 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 3-Cyano-4-oxo-pyrrolidine-1-carboxylate175463-32-843 % similar (2S,4S)-N-Boc-4-methylpyrrolidine-2-carboxylic acid364750-81-243 % similar 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate166410-05-543 % similar N-Boc-cis-4-hydroxy-D-proline135042-12-543 % similar 1-(1,1-Dimethylethyl) (2S,4R)-4-hydroxy-1,2-pyrrolidinedicarboxylate13726-69-743 % similar (2R,4S)-N-Alpha-T-butoxycarbonyl-4-hydroxypyrrolidine-2-carboxylic acid147266-92-043 % similar N-Boc-cis-4-hydroxy-L-proline87691-27-843 % similar 1-(1,1-Dimethylethyl) (2S,4S)-4-(methoxymethyl)-1,2-pyrrolidinedicarboxylate1378388-16-942 % similar (2S,4S)-1-((tert-Butoxy)carbonyl)-4-fluoropyrrolidine-2-carboxylic acid203866-13-142 % similar (2S,4R)-1-[(tert-Butoxy)carbonyl]-4-fluoropyrrolidine-2-carboxylic acid203866-14-242 % similar