PROCESSES FOR THE PREPARATION OF CICLESONIDE AND ITS CRYSTAL MODIFICATION

摘要

Improved processes for the synthesis of ciclesonide, chemically termed as [11&bgr;,16α(R)]-16,17-[(cyclohexylmethylene)bis(oxy)]-11-hydroxy-21-(2-methyl-1-oxopropoxy)pregna-1,4-diene-3,20-dione and its crystal modification.