(S)-1-cbz-3-羟基哌啶

(1’R,3S)-1-(2’-benzyloxy-1’-phenylethyl)piperidin-3-ol

(S)-5-羟基哌啶-2酮

(S)-5-羟甲基二氢呋喃-2-酮

3-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]propanenitrile