138163-12-9
1-Cbz-4-亚甲基哌啶
→
147610-98-8
2-氧代-7-氮杂螺[3.5]壬烷-7-羧酸苄酯
1227610-19-6
7-phenylmethoxycarbonyl-7-azaspiro[3.5]nonane-2-carboxylic acid