64-18-6
Formic acid
+
1202704-61-7
1,2-diamino-4-bromo-pyridinium 2,4,6-trimethyl-benzenesulfonate
→
~82%
1053655-66-5
7-溴-[1,2,4]噻唑并[1,5-a]吡啶
84249-14-9
4-溴吡啶-2-胺