期刊
CHEMMEDCHEM
卷 17, 期 10, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cmdc.202200056
关键词
Carbonic anhydrase; thiadiazole; amide linker benzenesulfonamide; glaucoma
资金
- Gazi University Scientific Research Projects Unit [02/2020-19]
A series of newly synthesized thiadiazolyl-benzenesulfonamide derivatives exhibited significant inhibitory activity against human carbonic anhydrase, with some compounds showing dual inhibition against two isoforms. The nature of substituents at the tail part of the main scaffold influenced the activity and selectivity towards different isoforms, with compound 17 demonstrating the most potent inhibitory effects.
We describe the synthesis of a series of thiadiazolyl-benzenesulfonamide derivatives carrying an aromatic tail linked by an amide linker (12-34), as human carbonic anhydrase (hCA) inhibitors. These thiadiazol derivatives were evaluated against four physiologically relevant CA isoforms (hCA I, II, IX, and XII), and demonstrated intriguing inhibitory activity against CA II with K-i values in the range of 2.4-31.6 nM. Besides hCA II, also hCA XII activity was potently inhibited by some of the derivatives (K-i=1.5-88.5 nM), producing dual inhibitors of both isoforms. Notably, compound 17 was the most potent dual CA II (K-i=3.1 nM) and XII (K-i=1.5 nM) inhibitor with a significant selectivity ratio over CA I and IX isoforms. In conclusion, although all compounds exhibited preferential activity towards hCA II, the nature of the substituents at the tail part of the main scaffold influenced the activity and selectivity toward other isoforms.
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