An intermediate used for the 1) preparation of a number of salts of fused pyrazine derivative for treatment of degenerative and inflammatory diseases, 2) preparation of a number of pyridine and pyrazine derivatives as protein kinase modulators for the treatment of CDK9-mediated diseases.
3,5-Dibromo-2-chloropyrazine is an intermediate used for the 1) preparation of a number of salts of fused pyrazine derivative for treatment of degenerative and inflammatory diseases, 2) preparation of a number of pyridine and pyrazi ne derivatives as protein kinase modulators for the treatment of CDK9-mediated diseases.