Discovery of a Furanopyrimidine-Based Epidermal Growth Factor Receptor Inhibitor (DBPR112) as a Clinical Candidate for the Treatment of Non-Small Cell Lung Cancer
作者:Shu-Yu Lin、Yung Chang Hsu、Yi-Hui Peng、Yi-Yu Ke、Wen-Hsing Lin、Hsu-Yi Sun、Hui-Yi Shiao、Fu-Ming Kuo、Pei-Yi Chen、Tzu-Wen Lien、Chun-Hwa Chen、Chang-Ying Chu、Sing-Yi Wang、Kai-Chia Yeh、Ching-Ping Chen、Tsu-An Hsu、Su-Ying Wu、Teng-Kuang Yeh、Chiung-Tong Chen、Hsing-Pang Hsieh
DOI:10.1021/acs.jmedchem.9b00722
日期:2019.11.27
Epidermal growth factor receptor (EGFR)-targeted therapy in non-small cell lung cancer represents a breakthrough in the field of precision medicine. Previously, we have identified a lead compound, furanopyrimidine 2, which contains a (S)-2-phenylglycinol structure as a key fragment to inhibit EGFR However, compound 2 showed high clearance and poor oral bioavailability in its pharmacokinetics studies. In this work, we optimized compound 2 by scaffold hopping and exploiting the potent inhibitory activity of various warhead groups to obtain a clinical candidate, 78 (DBPR112), which not only displayed a potent inhibitory activity against EGFR(L858R/T790M) double mutations but also exhibited tenfold potency better than the third-generation inhibitor, osimertinib, against EGFR and HER2 exon 20 insertion mutations. Overall, pharmacokinetic improvement through lead-to-candidate optimization yielded fourfold oral AUC better that afatinib along with F = 41.5%, an encouraging safety profile, and significant antitumor efficacy in in vivo xenograft models. DBPR112 is currently undergoing phase 1 clinical trial in Taiwan.