Q3 · MEDICINE
Article
Author: Chan, Shingpan ; Sun, Yiming ; Xun, Qiuju ; Li, Yan ; Su, Yi ; Yun, Cai-Hong ; Tong, Lingjiang ; Zhu, Su-Jie ; Zhang, Tao ; Chen, Yi ; Lu, Xiaoyun ; Xie, Hua ; Ding, Ke ; Hu, Xianglong ; Ding, Jian
EGFRC797S mutation inducing resistance against third generation EGFR inhibitor drugs is an emerging "unmet clinical need" for nonsmall cell lung cancer patients. The pyrimidopyrimidinone derivative JND3229 was identified as a new highly potent EGFRC797S inhibitor with single digit nM potency. It also exhibited good in vitro and in vivo monodrug anticancer efficacy in a xenograft mouse model of BaF3/EGFR19D/T790M/C797S cells. A high-resolution X-ray crystallographic structure was also determined to elucidate the interactions between JND3229 and EGFRT790M/C797S. Our study provides an important structural and chemical basis for future development of new generation EGFRC797S inhibitors as anticancer drugs.