methyl 2,3-dichloro-4H-thieno[3,2-b]pyrrole-5-carboxylate

tert-butyl (4,5-dichloro-2-formyl-3-thienyl)carbamate

methyl N-acetyl-N-(4,5-dichloro-2-formyl-3-thienyl) glycinate

methyl N-(tert-butoxycarbonyl)-N-(4,5-dichloro-2-formyl-3-thienyl) glycinate

4,5-二氯-2-噻吩羧醛