sodium cyanide

tert-butyl 2-(methylsulfonyloxy)-7-azaspiro[3.5]nonane-7-carboxylate

4-toluene-sulfonylmethyl isocyanide

2-氧代-7-氮杂螺[3.5]壬烷-7-甲酸叔丁酯

N-Boc-4-亚甲基哌啶