67-56-1
甲醇
+
89000-97-5
2-methyl-4-(thiophen-3-ylmethylidene)-1,3-oxazol-5-one
→
~75%
88991-34-8
methyl 2-acetamido-3-thiophen-3-ylprop-2-enoate
498-62-4
3-噻吩甲醛