PROCESS FOR THE PREPARATION OF 6-ALPHA, 9-ALPHA-DIFLUORO-17-ALPHA - ((2-FURANYLCARBONYL)OXY)-11-BETA -HYDROXY-16-ALPHA -METHYL-S-OXO-ANDROSTA-1,4-DIENE-17-BETA- -CARBOTHIOIC ACID S-FLUOROMETHYL

摘要

A novel process for preparing a compound of formula (I), which comprises converting a compound of formula (II) to a compound of formula (I) via a compound of formula (III), or a salt thereof (III), without isolating any intermediates.