Kinase inhibitors and their uses

摘要

The present disclosure provides compounds that inhibit protein kinases, such as JAK, Axl, or Syk kinases, compositions comprising the compounds and methods of using the compounds to inhibit protein kinase and treat and/or prevent diseases associated with inappropriate kinase activity. The compounds of the present invention are according to structural formula (I): or a salt or N-oxide thereof, wherein B is selected from