1147557-97-8
6-羟基-2-氮杂螺[3.3]庚烷-2-甲酸叔丁酯
→
~73%
1181816-12-5
2-Boc-6-氧代-2-氮杂螺[3.3]庚烷
934664-41-2
3-亚甲基氮杂丁烷-1-羧酸叔丁酯
1239320-10-5
5,5-Dichloro-6-oxo-2-azaspiro[3.3]heptane-2-carboxylic acid tert-butyl ester