for the following products
6alpha,9alpha-Difluoro-11beta-hydroxy-16alpha-methyl-3-oxo-17alpha-(propionyloxy)-androsta-1,4-diene-17beta-carbothioic acid | Androsta-1,4-diene-17-carbothioic acid, 6,9-difluoro-11-hydroxy-16-methyl-3-oxo-17-(1-oxopropoxy)-, (6α,11β,16α,17α)- | Fluticasone propionate intermediate and (6a,11b,16a,17a)-6,9-Difluoro-11-hydroxy-16-methyl-3-oxo-17-(1-oxopropoxy)-androsta-1,4-diene-17-carbothioic acid
