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(R)-Boc-5-oxopyrrolidine-2-carboxylic acid160347-90-0100 % similar 1-(1,1-Dimethylethyl) (2S)-5-oxo-1,2-pyrrolidinedicarboxylate53100-44-0100 % similar Di-tert-butyl (2S)-5-oxopyrrolidine-1,2-dicarboxylate91229-91-370 % similar 1-(1,1-Dimethylethyl) 2-methyl (2S)-5-oxo-1,2-pyrrolidinedicarboxylate108963-96-865 % similar 1-(1,1-Dimethylethyl) 2-ethyl (2S)-5-oxo-1,2-pyrrolidinedicarboxylate144978-12-162 % similar 1-Boc-D-pyroglutamic acid ethyl ester144978-35-862 % similar Boc-L-pyroglutaminol81658-25-560 % similar 1-[(tert-Butoxy)carbonyl]azetidine-2-carboxylic acid159749-28-760 % similar Boc-D-azetidine-2-carboxylic acid228857-58-760 % similar 1-Boc-L-azetidine-2-carboxylic acid51077-14-660 % similar Boc-L-proline15761-39-457 % similar (2R)-1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acid37784-17-157 % similar 1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acid59433-50-057 % similar 1-[(tert-Butoxy)carbonyl]piperidine-2-carboxylic acid118552-55-956 % similar (2S)-1-((tert-Butoxy)carbonyl)piperidine-2-carboxylic acid26250-84-056 % similar (R)-(+)-N-Boc-2-piperidinecarboxylic acid28697-17-856 % similar N-Boc-2-piperidinecarboxylic acid98303-20-956 % similar 1-(1,1-Dimethylethyl) 2-(phenylmethyl) (2S)-5-oxo-1,2-pyrrolidinedicarboxylate113400-36-554 % similar Boc-N-me-ser-oh101772-29-653 % similar 1-(1,1-Dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate84348-37-853 % similar