1-boc-4-氧代-3-氮杂烷羧酸乙酯

1-Tert-Butyl 4-Ethyl 3-Oxoazepane-1,4-Dicarboxylate

3-甲基-3-羟基哌啶

3-(吡啶-2-基)哌啶-1-羧酸叔丁酯

tert-butyl 3-(1,3-thiazol-2-yl)piperidine-1-carboxylate