作者:Qibin Su、Stephanos Ioannidis、Claudio Chuaqui、Lynsie Almeida、Marat Alimzhanov、Geraldine Bebernitz、Kirsten Bell、Michael Block、Tina Howard、Shan Huang、Dennis Huszar、Jon A. Read、Caroline Rivard Costa、Jie Shi、Mei Su、Minwei Ye、Michael Zinda
DOI:10.1021/jm401546n
日期:2014.1.9
Structure based design, synthesis, and biological evaluation of a novel series of 1-methyl-1H-imidazole, as potent Jak2 inhibitors to modulate the Jak/STAT pathway, are described. Using the C-ring fragment from our first clinical candidate AZD1480 (24), optimization of the series led to the discovery of compound 19a, a potent, orally bioavailable Jak2 inhibitor. Compound 19a displayed a high level of cellular activity in hematopoietic cell lines harboring the V617F mutation and in murine BaF3 TEL-Jak2 cells. Compound 19a demonstrated significant tumor growth inhibition in a UKE-1 xenograft model within a well-tolerated dose range.