666721-42-2
methyl 4-(4-aminophenyl)thiophene-2-carboxylate
→
~40%
26137-07-5
4-(4-溴苯基)-2-噻吩羧酸甲酯
820224-07-5
4-(4-(吡啶-4-基)苯基)噻吩-2-羧酸甲酯