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(R)-(+)-N-Boc-2-piperidinecarboxylic acid28697-17-845 % similar N-Boc-2-piperidinecarboxylic acid98303-20-945 % similar N-Methyl-D-pipecolic acid41447-17-045 % similar Benzyloxycarbonyl-L-proline1148-11-445 % similar N-(Benzyloxycarbonyl)-D-proline6404-31-545 % similar (S)-1-(3-(Acetylthio)-2-methyl-1-oxopropyl)-L-proline64838-55-744 % similar 1-Phenylpiperidine-2-carboxylic acid743422-75-543 % similar 1-Methylpiperidine-2-carboxylic acid hydrochloride25271-35-641 % similar (2R)-1-((9H-Fluoren-9-ylmethoxy)carbonyl)pyrrolidine-2-carboxylic acid101555-62-841 % similar Fmoc-pro-OH71989-31-641 % similar N-Benzyl-L-proline31795-93-441 % similar 1-Cbz-2-piperidinecarboxylic acid28697-07-641 % similar (D)-N-(Benzyloxycarbonyl)pipecolic acid28697-09-841 % similar 1-Carbobenzoxy-2-piperidinecarboxylic Acid71170-88-241 % similar 1-[(tert-Butoxy)carbonyl]azetidine-2-carboxylic acid159749-28-739 % similar Boc-D-azetidine-2-carboxylic acid228857-58-739 % similar Glycyl-4-hydroxyproline24587-32-439 % similar 1-Boc-L-azetidine-2-carboxylic acid51077-14-639 % similar 2-Chloro-1-(1-pyrrolidinyl)ethanone20266-00-638 % similar N6-(2,2,2-Trifluoroacetyl)-L-lysyl-L-proline103300-89-638 % similar