17α,20,20,21-bismethylenedioxypregn-4-ene-3,11-dione

(20Ξ)-3,3-ethanediyldioxy-6β-hydroxy-6α-methyl-17,20,20,21-bis-methylenedioxy-5α-pregnan-11-one

(20Ξ)-3,3-ethanediyldioxy-17,20;20,21-bis-methylenedioxy-5α-pregnane-6,11-dione