251-56-9
[1,3]thiazolo[5,4-d][1,3]thiazole
→
~44%
1040390-17-7
2-chlorothiazolo[5,4-d]thiazole
+
50616-95-0
2,5-dichloro-[1,3]thiazolo[5,4-d][1,3]thiazole