BRIDGED, BICYCLIC HETEROCYCLIC OR SPIRO BICYCLIC HETEROCYCLIC DERIVATIVES OF PYRAZOLO[1,5-A]PYRIMIDINES, METHODS FOR PREPARATION AND USES THEREOF

摘要

Compounds of formula A and pharmaceutically acceptable salts thereof are described, which selectively inhibit Raf kinase activity and are useful for treating disorders mediated by Raf kinases.