2-(1-Methyl-piperidin-4-ylideneamino)-propionamide

1-甲基-4-哌啶醇

邻苯二甲醚

1-甲基-4-氧代哌啶-3-羧酸乙酯

N,N-二-(beta-羰基乙氧基乙基)甲胺