Identification of novel thiazolo[5,4-d]pyrimidine derivatives as human A1 and A2A adenosine receptor antagonists/inverse agonists
作者:Flavia Varano、Daniela Catarzi、Matteo Falsini、Fabrizio Vincenzi、Silvia Pasquini、Katia Varani、Vittoria Colotta
DOI:10.1016/j.bmc.2018.05.048
日期:2018.7
In this study a new set of thiazolo[5,4-d]pyrimidine derivatives was synthesized. These derivatives bear different substituents at positions 2 and 5 of the thiazolopyrimidine core while maintaining a free amino group at position-7. The new compounds were tested for their affinity and potency at human (h) A1, A2A, A2B and A3 adenosine receptors expressed in CHO cells. The results reveal that the higher
在这项研究中,合成了一组新的噻唑并[5,4- d ]嘧啶衍生物。这些衍生物在噻唑并嘧啶核的2和5位带有不同的取代基,同时在7位保持游离氨基。测试了这些新化合物对在CHO细胞中表达的人(h)A 1,A 2A,A 2B和A 3腺苷受体的亲和力和效力。结果表明,这些新的噻唑并嘧啶组对hA 1和hA 2A的亲和力更高。腺苷受体亚型,并通过噻唑并嘧啶核的2和5位上的取代模式进行调节。功能研究证明该化合物具有双重A 1 / A 2A拮抗剂/反向激动剂的作用。在位置2处带有5-(((2-甲氧基苯基)甲基氨基)基团和苯基部分的化合物3表现出最高的亲和力(hA 1 K i = 10.2 nM; hA 2A K i = 4.72 nM)并表现出强效的性能阿1 / A 2A拮抗剂/反向激动剂(HA 1 IC 50 = 13.4纳米; HA 2A IC 50 = 5.34纳米)。