Heteroarylamide smoothened inhibitors: Discovery of N-[2,4-dimethyl-5-(1-methylimidazol-4-yl)phenyl]-4-(2-pyridylmethoxy)benzamide (AZD8542) and N-[5-(1H-imidazol-2-yl)-2,4-dimethyl-phenyl]-4-(2- pyridylmethoxy)benzamide (AZD7254)
作者:Bin Yang、Alexander W. Hird、Michael S. Bodnarchuk、Xiaolan Zheng、Les Dakin、Qibin Su、Kevin Daly、Robert Godin、Maureen M. Hattersley、Patrick Brassil、Sean Redmond、Daniel John Russell、James W. Janetka
DOI:10.1016/j.bmc.2019.115227
日期:2020.1
Aberrant hedgehog (Hh) pathway signaling is implicated in multiple cancer types and targeting the Smoothened (SMO) receptor, a key protein of the Hh pathway, has proven effective in treating metastasized basal cell carcinoma. Our lead optimization effort focused on a series of heteroarylamides. We observed that a methyl substitution ortho to the heteroaryl groups on an aniline core significantly improved
异常的刺猬(Hh)途径信号传导涉及多种癌症类型,靶向Hh途径的关键蛋白“ Smoothened(SMO)”受体已被证明可有效治疗转移的基底细胞癌。我们的主要优化工作集中在一系列杂芳基酰胺上。我们观察到苯胺核心上杂芳基的邻位甲基取代显着提高了该系列化合物的效价。这些发现早于2013年SMO晶体结构的可用性。在这里,我们回顾性地应用了量子力学计算,以证明o-Me取代通过诱导杂芳基环与核心苯胺之间的二面角扭曲而有利于生物活性构象。o-Me还可以与结合袋中的关键残基侧链形成有利的疏水相互作用。