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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 4,17β-dihydroxy- eller 4-acyloxy-17β-hydroxy-17α-methyl-3-oxo-1,4-androstadien- eller -1,4,6-androstatrien-forbindelser.