Methyl 5-bromo-4-nitrothiophene-2-carboxylate
Methyl 5-amino-4-nitrothiophene-2-carboxylate
2-Bromo-3-nitrothiophene
5-Chloro-4-nitrothiophene-2-carboxylic acid methyl ester
Methyl 5-((tert-butoxycarbonyl)amino)-4-nitrothiophene-2-carboxylate
2-Chloro-3-nitrothiophene
