| abstract |
The invention relates to processes for preparing compounds having the formula, n n n n n n n n n n n n and crystalline forms thereof, wherein Ar is aryl or heteroaryl, L is an optional alkylene linker, and R 2 , R 3 , R 4 , and R 5 , are as defined in the specification herein, which compounds are useful as kinase inhibitors, in particular, inhibitors of protein tyrosine kinase and p38 kinase. |