| abstract |
Disclosed are a compound useful as a kinase inhibitor, particularly an inhibitor of protein tyrosine kinase and p38 kinase, a crystal form thereof, and a process for producing the same. A monohydrate crystal of a compound represented by formula (IV). A process characterized in that the compound of formula (IV) is heated and dissolved in an ethanol / water mixture and then cooled to crystallize the monohydrate from the ethanol / water mixture. Furthermore, crystals of a butanol solvate and an ethanol solvate of the compound represented by formula (IV). [Selection figure] None |