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. Author manuscript; available in PMC: 2021 Nov 9.
Published in final edited form as: ACS Infect Dis. 2021 Mar 25;7(7):1969–1984. doi: 10.1021/acsinfecdis.1c00055

Table 4.

Inhibitory constants for analogs against NgCA and hCAs

CO2 Hydration KI (nM)a
CO2 Hydration KI (nM)a
CO2 Hydration KI (nM)a
Cpd NgCA hCA I hCA II Cpd NgCA hCA I hCA II Cpd NgCA hCA I hCA II
AZM 74.1 ± 3.2 250 ± 11 12.5 ± 0.8 12 14.1 ± 0.8 76.5 ± 3.6 26.2 ± 1.4 24 45.2 ± 3.0 64.7 ± 4.5 58.1 ± 2.2
1 73.2 ± 3.9 8,600b ± 300 60b ± 3 13 9.8 ± 0.4 63.3 ± 3.7 20.2 ± 1.5 25 61.4 ± 4.9 53.4 ± 2.8 20.9 ± 1.6
2 59.8 ± 2.1 235 ± 14 37.2 ± 1.9 14 75.8 ± 5.0 117 ± 9.4 47.7 ± 3.2 26 29.9 ± 1.4 14c ± 0.9 0.9c ± 0.04
3 41.0 ± 3.0 180 ± 6 30.9 ± 1.3 15 8.7 ± 0.7 152 ± 13 26 ± 1.8 27 63.6 ± 2.4 9.6c ± 0.8 1.6c ± 0.1
4 30.5 ± 1.1 167 ± 6.9 9.5 ± 0.8 16 78.6 ± 5.2 109 ± 7 29.0 ± 1.5 28 73.9 ± 3.0 701 ± 34 47.2 ± 4.1
5 27.5 ± 1.8 213 ± 14 22.3 ± 1.9 17 29.3 ± 2.1 372 ± 19 7.6 ± 0.6 29 42.1 ± 2.9 1,135 ± 98 78.4 ± 4.7
6 87.9 ± 5.0 215 ± 17 55.6 ± 3.7 18 5.8 ± 0.3 77.8 ± 6.9 4.9 ±0.3 30 62.0 ± 3.9 1,623 ± 126 104 ± 9.1
7 17.7 ± 0.9 367 ± 14 23.6 ± 1.4 19 34.6 ± 2.5 86.3 ± 5.9 19.4 ± 1.1 31 >10,000 n.d. n.d.
8 9.1 ± 0.6 231 ± 15 7.3 ± 0.60 20 36.6 ± 2.0 58.7 ± 4.1 24.5 ± 1.7 32 632 ± 41 465 ± 11 97.2 ± 11
9 8.5 ± 0.4 328 ± 14 22.7 ± 1.8 21 6.7 ± 0.4 190 ± 18 10.2 ± 0.7 33 439 ± 41 1,331 ± 11 67.7 ± 11
10 15.2 ± 0.6 157 ± 13 24.6 ± 1.3 22 0.70 ± 0.05 945 ± 37 0.32 ± 0.02
11 42.3 ± 1.6 125 ± 11 41.5 ± 2.0 23 8.3 ± 0.4 855 ± 76 8.1 ± 0.70

AZM = acetazolamide;

a

Catalytic CO2 hydration assay Ki determined from the mean of one experiment performed in triplicate and IC50 values entered into Cheng-Prusoff equation. Values reported are ± standard error of the mean.

b

Previously reported by Di Cesare Mannelli et al.81

c

Previously reported by Turkmen et al.80