Studies on conformation and reactivity. 3. The polyphosphoric acid-catalyzed ring opening of 4,5-epoxy-3-oxo steroids. 3. The synthesis of 16-alpha, 17-epoxy-4-ethyl-thiopregn-4-ene-3,20-dione and its analogs.
D002384:Catalysis; D055598:Chemical Phenomena; D002621:Chemistry; D010710:Phosphates; D013256:Steroids
D010710:Phosphates; D013256:Steroids