(20Ξ)-3,3-ethanediyldioxy-17,20;20,21-bis-methylenedioxy-5α-pregnane-6,11-dione

Pregna-1,4-diene-3,20-dione, 9-bromo-11.β.,17,21-trihydroxy-6.α.-methyl-, 21-acetate

甲泼尼龙

乙酸酐

17α-acetoxy-11β,21-dihydroxy-6α-methyl-1,4-pregnadiene-3,20-dione