8-phenethyl-1,4-dioxa-8-azaspiro[4.5]decane hydrochloride

N-苯乙基-3-羧酸甲酯-4-哌啶酮

N-(3-乙氧基-3-氧代丙基)-N-(2-苯基乙基)-beta-丙氨酸乙酯

4-哌啶酮缩乙二醇

苯乙醛