There are provided novel compounds of formula (I) wherein R and X are as defined in the Specification and optical isomers, racemates and tautomers thereof, and pharmaceutically acceptable salts thereof; together with processes for their preparation, compositions containing them and their use in therapy. The compounds are inhibitors of the kinase Itk.
提供了式(I)的新化合物,其中R和X如规范中所定义,并且其光学异构体、消旋体和互变异构体,以及其药用盐;还提供了它们的制备方法、含有它们的组合物以及它们在治疗中的用途。这些化合物是激酶Itk的
抑制剂。