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1-[(tert-Butoxy)carbonyl]piperidine-2-carboxylic acid118552-55-939 % similar (2S)-1-((tert-Butoxy)carbonyl)piperidine-2-carboxylic acid26250-84-039 % similar (R)-(+)-N-Boc-2-piperidinecarboxylic acid28697-17-839 % similar N-Boc-2-piperidinecarboxylic acid98303-20-939 % similar N6-(2,2,2-Trifluoroacetyl)-L-lysyl-L-proline103300-89-638 % similar N-alpha-(9-Fluorenylmethyloxycarbonyl)-L-prolinyl-L-proline129223-22-938 % similar N-Methyl-D-pipecolic acid41447-17-038 % similar Diprotin A90614-48-538 % similar (αS)-α-Ethyl-2-oxo-1-pyrrolidineacetic acid102849-49-037 % similar Levetiracetam acid103833-72-337 % similar Enalapril75847-73-337 % similar L-Tryptophyl-L-proline38136-75-337 % similar Glycylprolylhydroxyproline2239-67-037 % similar Benzyloxycarbonyl-L-proline1148-11-436 % similar N-(Benzyloxycarbonyl)-D-proline6404-31-536 % similar Lisinopril76547-98-336 % similar α-[(Acetylthio)methyl]-4-methyl-γ-oxobenzenebutanoic acid101973-77-736 % similar 1-Methylpiperidine-2-carboxylic acid hydrochloride25271-35-635 % similar N-Acetyl-4-thiazolidinecarboxylic acid5025-82-135 % similar (4R)-3-Acetyl-4-thiazolidinecarboxylic acid54323-50-135 % similar