84060-08-2
1,2-二氢-2-氧代螺[4H-3,1-苯并恶嗪-4,4'-哌啶]-1'-羧酸叔丁酯
→
~83%
84060-09-3
螺[4H-3,1-苯并噁嗪-4,4’-哌啶]-2(1H)-酮
79099-07-3
N-叔丁氧羰基-4-哌啶酮
3422-01-3
N-Boc-苯胺