Abstract:
:A series of sulfocoumarin-, coumarin-, and 4-sulfamoylphenyl-bearing indazole-3-carboxamide hybrids were synthesized and investigated as inhibitors of the human carbonic anhydrase (hCA, EC 4.2.1.1) isoforms I and II (cytosolic isozymes), as well as hCA IX and XII (transmembrane, tumor-associated enzymes). Compounds 6 a-g (amide derivatives) and 7 a-h (triazoles) act as "prodrugs", and their hydrolysis products are the de facto CA inhibitors. These compounds displayed sub-micromolar to high-nanomolar inhibitory activity against hCA isoforms IX and XII, which were recently validated as antitumor drug targets. Moreover, no inhibition of the off-target hCA I and II isoforms was observed. Compounds 8 a-f (another set of triazoles) exhibited nanomolar inhibition against hCA isoforms I, II, IX and XII, among which compounds 8 c, 8 d, and 8 f were found to inhibit the tumor-associated hypoxia-induced hCA isoform IX with Ki values of 1.8, 2.3, and 2.0 nm respectively. Further exploration of these compounds could be useful for the development of novel antitumor agents with selective mechanisms of CA inhibitory action.
journal_name
ChemMedChemjournal_title
ChemMedChemauthors
Angapelly S,Sri Ramya PV,Angeli A,Supuran CT,Arifuddin Mdoi
10.1002/cmdc.201700446subject
Has Abstractpub_date
2017-10-09 00:00:00pages
1578-1584issue
19eissn
1860-7179issn
1860-7187journal_volume
12pub_type
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