ethyl 4-(4-phenyl-3,6-dihydro-2H-pyridin-1-yl)butanoate

4-(2-氧代哌啶-1-基)丁酸

4-[4-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)苯氧基]丁酸乙酯

ethyl 4-(2-oxopyrrolidin-1-yl)benzoate

ethyl 4-((3-carboethoxypropyl)amino)benzoate