Carbonic anhydrase inhibitors. Novel sulfanilamide/acetazolamide derivatives obtained by the tail approach and their interaction with the cytosolic isozymes I and II, and the tumor-associated isozyme IX.
Article Details
- CitationCopy to clipboard
Turkmen H, Durgun M, Yilmaztekin S, Emul M, Innocenti A, Vullo D, Scozzafava A, Supuran CT
Carbonic anhydrase inhibitors. Novel sulfanilamide/acetazolamide derivatives obtained by the tail approach and their interaction with the cytosolic isozymes I and II, and the tumor-associated isozyme IX.
Bioorg Med Chem Lett. 2005 Jan 17;15(2):367-72.
- PubMed ID
- 15603956 [ View in PubMed]
- Abstract
A series of sulfonamides has been obtained by reacting sulfanilamide or 5-amino-1,3,4-thiadiazole-2-sulfonamide with omega-chloroalkanoyl chlorides, followed by replacement of the omega-chlorine atom with secondary amines. Tails incorporating heterocyclic amines belonging to the morpholine, piperidine and piperazine ring systems have been attached to these sulfonamides, by means of an alkanoyl-carboxamido linker containing from two to five carbon atoms. The new derivatives prepared in this way were tested as inhibitors of three carbonic anhydrase (CA, EC 4.2.1.1) isozymes, the cytosolic isozymes CA I and II, and the catalytic domain of the transmembrane, tumor-associated isozyme CA IX. Several low nanomolar CA I and CA II inhibitors were detected both in the aromatic and heterocyclic sulfonamide series, whereas the best hCA IX inhibitors (inhibition constants in the range of 22-35 nM) all belonged to the acetazolamide-like derivatives.
DrugBank Data that Cites this Article
- Binding Properties
Drug Target Property Measurement pH Temperature (°C) Acetazolamide Carbonic anhydrase 1 Ki (nM) 900 N/A N/A Details Acetazolamide Carbonic anhydrase 2 Ki (nM) 12 N/A N/A Details Diclofenamide Carbonic anhydrase 1 Ki (nM) 25 N/A N/A Details Diclofenamide Carbonic anhydrase 2 Ki (nM) 8 N/A N/A Details Dorzolamide Carbonic anhydrase 1 Ki (nM) 50000 N/A N/A Details Dorzolamide Carbonic anhydrase 2 Ki (nM) 9 N/A N/A Details Ethoxzolamide Carbonic anhydrase 1 Ki (nM) 1200 N/A N/A Details Ethoxzolamide Carbonic anhydrase 2 Ki (nM) 38 N/A N/A Details