5176-27-2
N-Boc-吡咯
+
41658-03-1
ethyl 3-bromoprop-2-ynoate
→
~50%
502506-71-0
7-O-tert-butyl 2-O-ethyl 3-bromo-7-azabicyclo[2.2.1]hepta-2,5-diene-2,7-dicarboxylate