21-bromo-17α-hydroxy-4-pregnene-3,20-dione

乙酸异丙烯酯

脱氧可的松

17,21-二羟基孕甾-4-烯-3,20-二酮17-乙酸酯

17α-hydroxy-21-chloro-4-pregnene-3,20-dione