21-acetoxy-11β,17-dihydroxy-pregna-4,8(14)-diene-3,20-dione

2-氟-4-羟基苯甲醛

4-氟乙酰苯胺

1,3,5-三溴-2-(2,3-二溴丙氧基)苯

1,3-二氯丙酮