3,3-[1,2-ethanediylbis(oxy)]-17α-hydroxy-19-norpregna-5(10),9(11)-diene-20-one
5α,10α-epoxy-17α-hydroxy-19-norpregn-9(11)-ene-3,20-dione 3,20-bis(ethylene acetal)
17α-hydroxy-19-norpregna-5(10),9(11)-diene-3,20-dione 3,20-bis(ethylene acetal)
ulipristal acetate
CDB-3236