CC(=O)Nc1nnc(s1)S(=O)(=O)N 1125 IC50 = 7 nM 10221 4 P27139 Carbonic anhydrase II CC1(O[C@H]2[C@H]3[C@@H](CO[C@]2(O1)COS(=O)(=O)N)OS(=O)(=O)O3)C 36660 IC50 = 21 nM 10221 4 P27139 Carbonic anhydrase II