(11β,16α)-21-(Acetyloxy)-9-fluoro-11-hydroxy-16-methyl-pregna-1,4-diene-3,20-dione; 9-Fluoro-11β,21-dihydroxy-16α-methyl-pregna-1,4-diene-3,20-dione 21-Acetate; 21-Acetoxy-9-fluoro-11β-hydroxy-16α-methylpregna-1,4-diene-3,20-dione; 9α-Fluoro-16α-methylpregna-1,4-diene-11β,21-diol-3,20-dione-21-acetate