Abstract: 15?-substituted derivatives of estrone of general formula I wherein R1, R2, R3, R4, R5 are independently selected from the group consisting of: C1-C4 alkyl, C1-C4 alkoxy, C1-C4 halogenalkyl, halogen, COOR6 wherein R6 is C1-C4 alkyl; H, OH; optionally, R3, R4 and R5 are each formed by a hydrogen atom, while R1 and R2 together form an aryl group, preferably naphthyl, in which the aromatic ring in position C-15 can be mono-, di-, tri-, tetra- and penta-substituted with substituents R1-R5. Compounds of the invention may be used for diagnosis and possibly also for the treatment of estrogen-dependent diseases.

Abstract: 15?-substituted derivatives of estrone of general formula I wherein R1, R2, R3, R4, R5 are independently selected from the group consisting of: C1-C4 alkyl, C1-C4 alkoxy, C1-C4 halogenalkyl, halogen, COOR6 wherein R6 is C1-C4 alkyl; H, OH; optionally, R3, R4 and R5 are each formed by a hydrogen atom, while R1 and R2 together form an aryl group, preferably naphthyl, in which the aromatic ring in position C-15 can be mono-, di-, tri-, tetra- and penta-substituted with substituents R1-R5. Compounds of the invention may be used for diagnosis and possibly also for the treatment of estrogen-dependent diseases.

Abstract: The invention relates to new 2-substituted D-homo-estra-1,3,5(10)-trienes of general formula I in which R2 means a C1-C8-alkyl group, a C1-C8-alkyloxy group or a halogen atom, R13 means a hydrogen atom or a methyl group, R17 means a hydrogen atom or a fluorine atom, as well as their pharmaceutically acceptable salts, their manufacture and use as medicaments for prophylaxis and therapy of estrogen-dependent diseases that can be influenced by inhibition of 17?-hydroxy steroid dehydro-genase type 1.

Abstract: The invention relates to new 2-substituted D-homo-estra-1,3,5(10)-trienes of general formula I in which R2 means a C1-C8-alkyl group, a C1-C8-alkyloxy group or a halogen atom, R13 means a hydrogen atom or a methyl group, R17 means a hydrogen atom or a fluorine atom, as well as their pharmaceutically acceptable salts, their manufacture and use as medicaments for prophylaxis and therapy of estrogen-dependent diseases that can be influenced by inhibition of 17?-hydroxy steroid dehydro-genase type 1.

Abstract: The invention relates to new 2-substituted D-homo-estra-1,3,5(10)-trienes of general formula I in which R2 means a C1-C8-alkyl group, a C1-C8-alkyloxy group or a halogen atom, R13 means a hydrogen atom or a methyl group, R17 means a hydrogen atom or a fluorine atom, as well as their pharmaceutically acceptable salts, their manufacture and use as medicaments for prophylaxis and therapy of estrogen-dependent diseases that can be influenced by inhibition of 17?-hydroxy steroid dehydro-genase type 1.

Abstract: The invention relates to new 2-substituted estra-1,3,5(10)-trien-17-ones of formula I as well as their pharmaceutically acceptable salts, their methods of manufacture and use as medicaments for prophylaxis and/or therapy of estrogen-dependent diseases that can be influenced by the inhibition of 17?-hydroxy steroid dehydrogenase type 1.

Abstract: The invention relates to new 2-substituted D-homo-estra-1,3,5(10)-trienes of general formula I in which R2 means a C1-C8-alkyl group, a C1-C8-alkyloxy group or a halogen atom, R13 means a hydrogen atom or a methyl group, R17 means a hydrogen atom or a fluorine atom, as well as their pharmaceutically acceptable salts, their manufacture and use as medicaments for prophylaxis and therapy of estrogen-dependent diseases that can be influenced by inhibition of 17?-hydroxy steroid dehydro-genase type 1.

Abstract: The invention relates to new 2-substituted estra-1,3,5(10)-trien-17-ones of general formula I in which R2 means a saturated or unsaturated C1-C8-alkyl group, a C1-C5-alkyloxy group, an aralkyl radical or alkylaryl radical, a radical —O—CnFmHo, whereby n=1, 2, 3, 4, 5 or 6, m?1 and m+o=2n+1, or a group CH2XY, in which X stands for an oxygen atom and Y stands for an alkyl radical with 1 to 4 carbon atoms, as well as a halogen atom or a nitrile group, R13 means a hydrogen atom or a methyl group, R16 means a hydrogen atom or a fluorine atom, Z means an oxygen atom or a sulfur atom, R3 and R5, in each case independently of one another, mean an ?- or ?-position hydrogen atom, R4 and R6, in each case independently of one another, mean an ?- or ?-position hydrogen atom, a C1-C5-alkyl group, a C1-C5-alkyloxy group, a C1-C5-acyl group or a hydroxy group or an aralkyl radical or alkylaryl radical, R3 and R4 together mean an oxygen atom, R5 and R6 together mean an oxygen atom, R7 and R8 in each case mean a