2-PYRAZINE CARBOXAMIDES AS SPLEEN TYROSINE KINASE INHIBITORS

摘要

The invention provides certain pyrazine-2-carboxamide compounds of the Formula (I) or pharmaceutically acceptable salts thereof, wherein A, B, and X are as defined herein. The invention also provides pharmaceutical compositions comprising such compounds, and methods of using the compounds for treating diseases or conditions mediated by Spleen Tyrosine Kinase (Syk).