Structural Optimization and Structure–Activity Relationship Studies of 6,6-Dimethyl-4-(phenylamino)-6<i>H</i>-pyrimido[5,4-<i>b</i>][1,4]oxazin-7(8<i>H</i>)-one Derivatives as A New Class of Potent Inhibitors of Pan-Trk and Their Drug-Resistant Mutants
作者:Shulei Pan、Liting Zhang、Xinling Luo、Jinshan Nan、Wei Yang、Huachao Bin、Yang Li、Qiao Huang、Tianqi Wang、Zhiling Pan、Bo Mu、Falu Wang、Chenyu Tian、Yang Liu、Linli Li、Shengyong Yang
DOI:10.1021/acs.jmedchem.1c01597
日期:2022.2.10
the drug-resistance mutations of Trks have already emerged, which calls for new-generation Trks inhibitors. Herein, we report the structural optimization and structure–activity relationship studies of 6,6-dimethyl-4-(phenylamino)-6H-pyrimido[5,4-b][1,4]oxazin-7(8H)-one derivatives as a new class of pan-Trk inhibitors. The prioritized compound 11g exhibited low nanomolar IC50 values against TrkA, TrkB
原肌球蛋白受体激酶(TrkA、TrkB 和 TrkC)是多种癌症的有吸引力的治疗靶点。两种第一代小分子 Trks 抑制剂 larotrectinib 和 entrectinib 刚刚被批准用于临床。然而,Trks的耐药突变已经出现,这就需要新一代的Trks抑制剂。在此,我们报告了 6,6-dimethyl-4-(phenylamino)-6 H -pyrimido[5,4- b ][1,4]oxazin-7(8 H )-的结构优化和构效关系研究一种衍生物作为一类新的泛 Trk 抑制剂。优先化合物11g表现出低纳摩尔 IC 50对 TrkA、TrkB 和 TrkC 以及各种耐药突变体的值。它还显示出良好的激酶选择性。11g在完整细胞中表现出优异的体外抗肿瘤活性并强烈抑制 Trk 介导的信号通路。在体内研究中,化合物11g在 BaF3-TEL-TrkA 和 BaF3-TEL-TrkC G623