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Fremgangsmåde til fremstilling af 2-brom-4,17β-dihydroxy-17α-methyl-3-oxo-4-androsten- eller 2-brom-4-acyloxy-17β-hydroxy-17α-methyl-3-oxo-4-androsten-forbindelser.
Fremgangsmåde til fremstilling af 6-chlor-4,17β-dihydroxy-17α-methyl-3-oxo-4-androsten- eller 6-chlor-4-acyloxy-17β-hydroxy-17α-methyl-3-oxo-4-androsten-forbindelser.
Fremgangsmåde til fremstilling af 17α-acyloksy-16α-metyl-4-pregnen-3,20-dion-derivater eller 17α-acyloksy-16α-metyl-4,6-pregnadien-3,20-dion-derivater.