N-BOC-4-(2-乙氧羰基乙酰基)哌啶

1-叔丁氧羰基-4-哌啶甲酰胺

乙基奎宁环-4-羧酸酯

1-tert-Butyl-4-ethyl 4-(4-fluorophenylthio)piperidine-1,4-dicarboxylate

4-(二苯基甲基)哌啶