hCAII-IN-3 (Compound 16) is an inhibitor of human carbonic anhydrase (hCA). It exhibits high affinity for hCA I, hCAII, hCA IX, and hCA XII, with Ki values of 403.8 nM, 5.1 nM, 10.2 nM, and 5.2 nM, respectively. Notably, hCA IX-IN-2 demonstrates anticancer activity [1].
hCAI II-IN-2 (compound 2b) is a highly effective dual inhibitor of human carbonic anhydrase I and II (hCA I II), with Ki values of 40.97 nM, 15.15 nM, and 61.88 nM for hCA I, hCAII, and hCA IX, respectively. With its anti-hypoxic properties, hCAI II-IN-2 demonstrates activity against acute mountain sickness (AMS). Furthermore, this compound exhibits low cellular activity [1].
hCAI II-IN-4 (compound 6d) is a powerful inhibitor of both hCA I and hCAII enzymes, with Ki values of 16.95 nM and 15.22 nM, respectively. It demonstrates inhibitory activity against hCA IX with a Ki value of 27.04 nM. Additionally, hCAI II-IN-4 exhibits anti-hypoxia properties while maintaining low toxicity. This compound is suitable for investigating acute mountain sickness (AMS) in research studies [1].