4-氨基-1-哌啶甲酸乙酯

4-吗啉代哌啶

1,3,4,5-四氢-2H-吡啶并[4,3-b]吲哚-2-甲酸乙酯

ethyl 4-benzhydrylidenepiperidine-1-carboxylate

氮杂环庚-4-酮