3-oxopimelic acid

5-氧代-己酸甲酯

6-甲基哌啶-2-酮

(-)-(2R)-[(2S)-(hydroxymethyl)piperidin-1-yl]-2-phenylethanol

(-)-5-oxo-6-[(R)-(phenyl)(phenylmethoxycarbonylamino)acetoxy]hexanoic acid methyl ester