2-Substituted 7-trifluoromethyl-thiadiazolopyrimidones as alkaline phosphatase inhibitors. Synthesis, structure activity relationship and molecular docking study
catalysed Suzuki-Miyaura reactions. The synthesized derivatives were found potent but non-selective inhibitors of both isozymes of AP. Arylated thiadiazolopyrimidones exhibited stronger inhibitory activities than 2-amino-thiadiazolopyrimidones. The binding modes and possible interactions of the most active inhibitor within the active site of the enzyme were observed by molecular docking studies.
碱性磷酸酶(APs)在维持磷酸盐与无机焦磷酸盐(P i / PP i)的比例方面起着关键作用,从而在骨骼形成和生长过程中调节细胞外基质钙化。在AP的不同同工酶中,组织非特异性碱性磷酸酶(TNAP)水平异常升高与血管钙化和终末期肾脏疾病密切相关。在这种情况下,我们合成了一系列新的氟化嘧啶酮衍生物,即2-溴-7-三氟甲基-5-氧代-5 H-1,3,4-噻二唑嘧啶酮。通过使用胺作为亲核体的亲核芳族取代以及通过钯催化的Suzuki-Miyaura反应,将溴官能度进一步用于衍生化。发现合成的衍生物是AP的两种同工酶的有效但非选择性的抑制剂。与2-氨基噻二唑并嘧啶酮相比,丙烯酸化的噻二唑并嘧啶酮表现出更强的抑制活性。通过分子对接研究观察到了酶活性位点内活性最高的抑制剂的结合模式和可能的相互作用。
Highly Potent and Selective Ectonucleoside Triphosphate Diphosphohydrolase (ENTPDase1, 2, 3 and 8) Inhibitors Having 2-substituted-7- trifluoromethyl-thiadiazolopyrimidones Scaffold
malachite green assay. RESULTS The results suggested that some of the compounds were found as non-selective inhibitors of isozyme of NTPDases, however, most of the compounds act as potent and selective inhibitors. In case of substituted amino derivatives (4c-m), the compounds 4m (IC50 = 1.13 ± 0.09 μM) and 4g (IC50 = 1.72 ± 0.08 μM) were found to be the most potent inhibitors of h-NTPDase1 and 2, respectively