[EN] SUBSTITUTED PYRAZOLO[1,5-A]PYRIDINE COMPOUNDS AS RET KINASE INHIBITORS [FR] COMPOSÉS SUBSTITUÉS DE PYRAZOLO[1,5-A]PYRIDINES COMME INHIBITEURS DE LA KINASE RET
[EN] SUBSTITUTED PYRAZOLO[1,5-A]PYRIDINE COMPOUNDS AS RET KINASE INHIBITORS<br/>[FR] COMPOSÉS SUBSTITUÉS DE PYRAZOLO[1,5-A]PYRIDINES COMME INHIBITEURS DE LA KINASE RET
申请人:ARRAY BIOPHARMA INC
公开号:WO2017011776A1
公开(公告)日:2017-01-19
Provided herein are compounds of the General Formula I: and stereoisomers and pharmaceutically acceptable salts or solvates thereof, in which A, B, D, E, X1, X2, X3 and X4 have the meanings given in the specification, which are inhibitors of RET kinase and are useful in the treatment and prevention of diseases which can be treated with a RET kinase inhibitor, including diseases or disorders mediated by a RET kinase.
JanusKinase 2 (JAK2) is a kind of intracellular non-receptor protein tyrosine kinase and has been certified as an important target for the treatment of myeloproliferative neoplasms and rheumatoid arthritis. However, the low selectivity and potential safety issues restrict the clinical applications of JAK2 inhibitors. Here we found that crizotinib showed good inhibitory activity against JAK2 by enzymatic