Patent ID: 7119082

Claim:
A 19-Nor-17α-pregna-1,3,5(10)-triene with a 21,16α-lactone ring of formula (II) in which R 3 is a hydrogen atom, a C 1-4 -alkyl, C 2-6 -acyl, a tri(C 1-4 -alkyl)silyl group or R 18 SO 2 -, R 18 is R 19 R 20 N-, R 19 and R 20 are, independently of one another, a hydrogen atom, a C 1-5 -alkyl radical, or C(O)R 21 , R 21 is a straight-chain or branched hydrocarbon radical with up to 6 carbon atoms, a C 3-7 -cycloalkyl radical, an aryl radical, an aralkyl radical or an alkylaryl radical, R 11 is a straight-chain alkyl radical with 6 to 17 carbon atoms, and R 13 is a methyl or ethyl groups, or a pharmaceutically acceptable salt thereof.