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1-O-tert-Butyl 2-O-(2,5-dioxopyrrolidin-1-yl) (2S)-pyrrolidine-1,2-dicarboxylate3392-10-748 % similar Methyl N-boc-piperidine-3-carboxylate148763-41-148 % similar 3-Oxopyrrolidine-1-carboxylic acid tert-butyl ester101385-93-747 % similar 1-tert-Butyl 3-methyl piperazine-1,3-dicarboxylate129799-08-246 % similar 1-(1,1-Dimethylethyl) 3-methyl (3S)-1,3-piperazinedicarboxylate314741-39-446 % similar 1-(1,1-Dimethylethyl) 3-methyl (3R)-1,3-piperazinedicarboxylate438631-77-746 % similar 1-[(tert-Butoxy)carbonyl]azetidine-2-carboxylic acid159749-28-746 % similar Boc-D-azetidine-2-carboxylic acid228857-58-746 % similar 1-Boc-L-azetidine-2-carboxylic acid51077-14-646 % similar tert-Butyl (2S)-4-oxo-2-(1,3-thiazolidin-3-yl carbonyl)pyrrolidine-1-carboxylate401564-36-145 % similar N-Boc-hexahydro-1H-azepin-4-one188975-88-445 % similar Boc-L-proline15761-39-444 % similar (2R)-1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acid37784-17-144 % similar 1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acid59433-50-044 % similar D-1-N-Boc-prolinamide70138-72-644 % similar tert-Butyl 2,2-dimethyl-4-oxopiperidine-1-carboxylate346593-03-144 % similar tert-Butyl 2,4-dioxopiperidine-1-carboxylate845267-78-944 % similar 1-[(tert-Butoxy)carbonyl]piperidine-2-carboxylic acid118552-55-943 % similar tert-Butyl 4-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate175213-46-443 % similar (2S)-1-((tert-Butoxy)carbonyl)piperidine-2-carboxylic acid26250-84-043 % similar