1-苄基-2-哌啶硫酮

2-(3-trioxidaneyl-23,33-hexaoxan-2-yl)-13,24,33,43,53,63-hexaoxine

1-((tert-butylimino)methyl)piperidin-2-ol

2-methoxy piperidine N-t-butyl formamidine

1-((tert-butylimino)methyl)piperidin-2-one