Carbonic anhydrase inhibitors: The first on-resin screening of a 4-sulfamoylphenylthiourea library

Alessio Innocenti, Angela Casini, Maria C. Alcaro, Anna M. Papini, Andrea Scozzafava, Claudiu T. Supuran

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


Sulfonamide carbonic anhydrase (CA) inhibitors are widely employed in the diagnosis and treatment of diverse diseases such as glaucoma and different neuromuscular disorders. Moreover, an emerging area is represented by their use in the prevention and treatment of tumors. In this paper we propose an optimized synthesis of on-resin CA inhibitor libraries to be used for a high-throughput biological screening. A library of 4-sulfamoylphenylthioureas, previously described to be attractive candidates as novel antiglaucoma drugs, has been synthesized by a solid-phase approach, avoiding the formation of thiohydantoin side products. The on-resin screening assay has been developed for the inhibition tests of different CA isozymes with the on-resin supported sulfonamides, allowing the direct identification of the biologically active lead compounds. These results allow the development of new designed libraries in the solid phase of sulfonamide CA inhibitors characterized by a set of prefixed parameters to be used as possible drug candidates.

Original languageEnglish
Pages (from-to)5224-5229
Number of pages6
JournalJournal of Medicinal Chemistry
Issue number21
StatePublished - 7 Oct 2004
Externally publishedYes


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