Process for the preparation of S-fluoromethyl ester 6-alpha, 9 alpha-difluoro-17-alpha acid - ((2-furanylcarbonyl) oxy) -11-beta-hydroxy-16 alpha-methyl-3-oxo- androsta-1,4-diene-17-beta-carbothioic

A process for preparing a compound of formula (I) ** ** Formula comprising converting a compound of formula (II) ** ** Formula into a compound of formula (I) via a compound of formul0a (III), or a salt thereof, ** ** Formula uninsulated no intermediate, and the process being conducted in methylethylketone or pentan-2-one or mixtures thereof as solvent.