4-乙炔哌啶

4-(苯基乙炔)哌啶

N-boc-4-(苯基乙炔)哌啶

tert-butyl 4-(3-oxobut-1-ynyl)piperidine-1-carboxylate

tert-butyl 4-but-1-ynylpiperidine-1-carboxylate