ENTPDase inhibitors—non-nucleotide analogs

Derivatives classInhibitorsIC50a or Kib
(µM)
SpecificityApplicationsExperimental context
Polyoxometalates (POMs)
[7779]
POM-10.8000bN1 > N3 >> N2Potential anticancer, cardiprotection.
ENTPDases functional studies.
Inhibition assays with recombinant protein and in vitro assays using metastatic cells.
PSB-POM142 (POM-5)0.0039bN1 >> N2 > N3
Anthraquinone derivatives
[73, 82]
PSB-06915.70aN1 > N2 > N3Therapeutic potential for treating neurodegenerative and neuroinflammatory diseases and inflammation.In vitro inhibition assays using capillary electrophoresis (CE) and the malachite green assay (MG).
PSB-07112.80aN2 > N3 >> N1
PSB-061261.500aN3
PSB-161310.539aN2
PSB-20200.551aN2
PSB-10110.390aN3
PSB-20460.723aN3
Tryptamine-derived Schiff bases
[69]
C# 10.030bN1Potential for use in the treatment of cancer and thrombosis.Inhibition assays with recombinant enzymes (MG) and molecular docking.
C# 40.080bN1
C# 50.071bN3 > N1 = N8
C# 130.280bN8
C# 140.170bN3 > N1 > N8
C# 220.490bN8
Thiadiazole pyrimidones
[66]
8b0.04bN1Study of insulin secretion and purinergic modulation.Inhibition assays with recombinant human enzymes (MG), docking studies, and in vitro tests on pancreatic islets.
8c0.03bN1 > N3 >> N8
8f0.03bN1
8i0.17bN2 > N1
8j0.02bN1 > N2
8k0.07bN2
8m0.16bN3 >> N1
Carboxamides
[70]
2a1.60aN8 > N2 > N3 > N1Treatment of type 2 diabetes, inflammatory and metabolic disorders, and isoform-specific studies.Inhibition assays with recombinant human enzymes (MG), in vitro tests on pancreatic islets, and molecular docking studies.
2b2.82aN3
2d0.15aN2 > N1
2f0.70aN1
2h0.12aN1
2i1.46aN1 > N3
Quinoline derivatives
[80]
2c0.86aN3 > N8 > N1Therapeutic potential to treat cancer and other diseases associated with ENTPDase overexpression.Inhibition assays with recombinant human enzymes (malachite green).
2h0.36aN3 > N1 > N2 > N8
3b0.55aN1 > N2
3f0.20aN1 > N3
40.51aN3 > N1 > N2
5c0.65a (b)N8
Sulfopolysac-charides
[85]
Compound 51.72bN1, but also inhibited NPP1
NPP1 > N1
Therapeutic potential to treat cancer.Inhibition assays on enzymes (NTPDases and NPPs) and U87 glioblastoma cells using CE and MG.
Compound 60.408b
Compound 712.3b
Tienotetraidropirimidina derivatives
[64]
Compound 3245.2aDual inhibitor for N1 (CD39) and CD73Therapeutic potential to treat cancer.Inhibition assays with recombinant enzymes using CE and MG.
Thiadiazole amide derivatives
[83]
5a0.05aN1 >> N2 > N8Potential in cancer immunotherapy and the treatment of immunological and thrombotic diseases.Inhibition assays with recombinant human enzymes (MG) and molecular docking studies.
5b0.06aN2 > N1
5c0.08aN2 > N1
5e0.05aN8 >> N1 > N3 >> N2
5g0.04aN2 >> N8
5j0.07aN8 >> N2 > N1 > N3
Glicinatos de tienopirimidina
[84]
3j0.11aN1Potential in cancer immunotherapy and the treatment of inflammatory diseases, diabetes, and thrombosis.Inhibition assays with recombinant human enzymes (MG) and molecular docking studies.
3k3.00aN3
3l1.00aN8 >> N1
3n0.40aN2
40.13aN2
Protein kinase inhibitors
[87]
Certinib11.3aN1 >> N3 = N8Potential in cancer immunotherapy and a basis for the development of new inhibitors.Inhibition assays with recombinant and native enzymes (tumor cell cultures) using CE and MG.
Sulfamoyl benzamides
[86]
2d0.28aN8Potential in cancer immunotherapy and the treatment of type 2 diabetes and thrombosis.Inhibition assays with recombinant human enzymes (MG) and molecular docking studies.
3f0.27aN2 > N3
3i0.72aN3 > N1
3j0.29aN2 > N3
4d0.13aN2 > N3 > N8

N1, N2, N3, and N8 refer to NTPDases 1, 2, 3, and 8, respectively. CE: capillary electrophoresis; MG: malachite green method; ENTPDases: ectonucleoside triphosphate diphosphohydrolases; CD39: cluster of differentiation 39; NPP: nucleotide pyrophosphatase/phosphodiesterase