D, E, F. for each impurity: one or more diastereoisomer(s)
of (9-fluoro-11β,17aξ-dihydroxy-16ξ-methyl-3,17-dioxo
17aξ-homoandrosta-1,4-dien-17aξ-yl)methyl dihydrogen
phosphate (undefined stereochemistry at C-16 and C-17a),
or (9-fluoro-11β,17ξ-dihydroxy-16α-methyl-3,17a-dioxo
17a-homoandrosta-1,4-dien-17ξ-yl)methyl dihydrogen
phosphate (undefined stereochemistry at C-17)