PROCESS FOR THE PREPARATION OF A crystalline modification of flunisolide, AND CRYSTALLINE flunisolide.

摘要

A unique crystalline form of flunisolide is prepared by crystallizing flunisolide from a solution thereof in an alkanol of three or four carbon atoms, e.g. n-butanol, containing 0.2 to 5%, preferably 1.0 to 4.0% by volume water.