5-chloro-3-(4-methanesulfonylphenyl)-6-methyl-2,3bipyridinyl in pure crystalline form and process for synthesis

摘要

This invention encompasses the Form V polymorph of Compound A of structural formula: ;which is useful in the treatment of cyclooxygenase-2 mediated diseases. The invention encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising the Form V polymorph of Compound A. The invention also encompasses a process for synthesizing the Form V polymorph of Compound A.