4,7-Dichlorothieno[3,2-d]pyrimidine
2,4-Dichlorothieno[2,3-d]pyrimidine
4,6-Dichlorothieno[2,3-b]pyridine
5,7-Dichlorothieno[3,2-b]pyridine
7-Bromo-2,4-dichlorothieno[3,2-d]pyrimidine
4,7-Dichlorothieno[2,3-d]pyridazine
Diethyl 2,5-dichlorothieno[3,2-b]thiophene-3,6-dicarboxylate
