13932-53-1
ethyl hydrogen carbonate
+
1304777-34-1
N-(4-溴-5-甲基-2H-吡唑-3-基)-乙脒
→
~75%
55457-59-5
8-溴-2,7-二甲基-3H-吡唑并[1,5-a][1,3,5]噻嗪-4-酮