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6-Oxo-pipecolinic acid

(S)-2-Piperidinone-6-carboxylic acid

1-N-Cbz-3-piperidone

1-Boc-piperidin-2-ylpropionic acid

1-Boc-piperidin-3-ylpropionic acid

(L)-N-Cbz-Pipecolic acid

(D)-N-Cbz-Pipecolic acid

(L)-N-Fmoc-Pipecolic acid

3-(4-Methylpiperidin-1-yl)propan-1-amine

1,5-Dioxa-9-azaspiro[5.5]undecane