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2-Acetyl-5-nitrothiophene

3,4-Dibromo-2,5-dichlorothiophene

2-Acetyl-5-iodothiophene

2-Acetyl-3-aminothiophene

2-(Trimethylacetyl)thiophene

Methyl 4-oxotetrahydrothiophene-3-carboxylate

3-Bromo-5-chlorothiophene-2-sulfonyl chloride

Methyl 3-chlorobenzo[B]thiophene-2-carboxylate

2-Acetyl-3-methylbenzo[B]thiophene

5-(2-Pyridyl)thiophene-2-sulfonyl chloride