11β,17β-dihydroxy-7α-nitromethyl-pregna-4-en-3-one-21-carboxylic acid, γ-lactone

11β,17β-dihydroxy-7β-nitromethyl-pregna-4-en-3-one-21-carboxylic acid, γ-lactone

11a-羟基坎利酮丙烯酸甲酯

9α,11α-epoxy-17β-hydroxypregn-4-en-3-one-7α,21-dicarboxylic acid γ-lactone