Download Mendeley5-Substituted-benzylsulfanyl-thiophene-2-sulfonamides with effective carbonic anhydrase inhibitory activity: Solution and crystallographic investigations.
Ivanova, J., Balode, A., Zalubovskis, R., Leitans, J., Kazaks, A., Vullo, D., Tars, K., Supuran, C.T.(2017) Bioorg Med Chem 25: 857-863
- PubMed: 28024887
- DOI: https://doi.org/10.1016/j.bmc.2016.11.045
- Primary Citation of Related Structures:
5MJN - PubMed Abstract:
A series of 5-substituted-benzylsulfanyl-thiophene-2-sulfonamides was prepared by reacting 5-bromo-thiophene-2-sulfonamide with 5-substituted-benzyl mercaptans. The new compounds were investigated as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors. The cytosolic human (h) isoforms hCA I was poorly inhibited by the new sulfonamides (K I s in the range of 683-4250nM), whereas hCA II, and the transmembrane, tumor associated isoforms hCA IX and XII were effectively inhibited in the subnanomolar-nanomolar range. A high resolution X-ray crystal structure of the adduct of hCA II with one of the new sulfonamides allowed us to rationalize the excellent inhibitory activity of these heterocyclic sulfonamides.
Organizational Affiliation:
Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia; Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3/7 Paula Valdena Str., Riga LV-1048, Latvia.
