反应详情

Candesartan cilexetil Form I (C) (2.5 g) was dissolved in DCM (3.5 ml) at about 25° C. to form a solution, and isoamyl acetate (35 ml) was added dropwise. The solution was cooled in an ice bath and stirred for about 3 hours to obtain a precipitate. The precipitate was collected by filtration and dried under reduced pressure (30 mbar) at 50° C. for about 7.5 hours to obtain Form XIII.