2-Thiophenecarbonyl Chloride is used in the synthesis of substituted pyridines as selective and highly effective GPR119 agonists. It is also seen in the preparation of diuretics.
Wu, Y. et al.: Bioorg. Med. Chem. Lett., 20, 2577 (2010); Plattner, J. et al.: J. Med. Chem., 27, 1016 (1984)