64-18-6
Formic acid
+
40106-45-4
4-肼基-5,6,7,8-四氢[1]苯并噻吩并-[2,3-d]嘧啶
→
~63%
58125-46-5
8,9,10,11-tetrahydro-benzo[4,5]thieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine