Abstract: The invention relates to novel 18-methyl-19-nor-17-pregn-4-en-21,17-carbolactones of general formula (I), where Z=O, H2, ?NOR or ?NNHSO2R, where R=H, a straight- or branched-chain 1-4 or 3-4 C alkyl group, R4=H, halogen, methyl or trifluoromethyl, R6 and/or R7 can be ?- or ?-positioned and independently=branched- or straight-chain 1-4 or 3-4 alkyl, or R6=H and R7=a- or ?-positioned, straight- or branched-chain 1-4 or 3-4 C alkyl, or R6 and R7=H, or R6 and R7 together=a- or ?-positioned methylene or an additional bond. The novel compounds have gestagenic and antimineralocorticoid activity and are suitable for the production of pharmaceutical preparations, for example, for oral contraception and the treatment of pre-, peri- and post-menopausal pain.

Abstract: The present invention describes the novel 18-methyl-19-norandrost-4-ene 17,17-spiro ethers of the general formula I in which Z is an oxygen atom, two hydrogen atoms, a group ?NOR or ?NNHSO2R, where R is a hydrogen atom or a straight- or branched-chain alkyl group having 1 to 4 or 3 to 4 carbon atoms, R4 is a hydrogen atom, a halogen atom or a trifluoromethyl group, and R6 and/or R7 may have a or a configuration, and R6 and R7 are independently of one another a hydrogen atom or a straight- or branched-chain alkyl group having 1 to 4 or 3 to 4 carbon atoms or a straight- or branched-chain alkenyl group having 2 to 4 or 3 to 4 carbon atoms or a saturated cycloalkyl group having 3 to 5 carbon atoms or together are a methylene group or a double bond. The novel compounds have progestational and antimineralocorticoid activity.

Abstract: This invention provides prodrugs of 8?-substituted estratrienes of general formula (I), in which the group Z is bonded to the steroid, process for their production, pharmaceutical compositions that contain these compounds as well as use thereof. The compounds of general formula I according to the invention do not bind to the estrogen receptor ? and/or ?. They bind to carbonic anhydrases and inhibit these enzymes.

Abstract: The present invention relates to thiomorpholino steroid compounds of general formula I, which may advantageously be employed to stimulate meiosis in human oocytes, the steroid being specifically characterized by a thiomorpholino moiety bonded to C17 of the steroid skeleton via an alkylen spacer.

Abstract: This invention describes the new 18-methyl-19-nor-17-pregn-4-ene-21,17-carbolactones of general formula I in which Z means an oxygen atom, two hydrogen atoms, a grouping ?NOR or ?NNHSO2R, whereby R is a hydrogen atom or a straight-chain or branched-chain alkyl group with 1 to 4 or 3 to 4 carbon atoms, R4 is a hydrogen atom, a halogen atom, a methyl group, or a trifluoromethyl group, R6 and/or R7 can be in ?- or ?-position, and, independently of one another, mean a straight-chain or branched-chain alkyl group with 1 to 4 or 3 to 4 carbon atoms, or R6 means a hydrogen atom, and R7 means an ?- or ?-position, straight-chain or branched-chain alkyl group with 1 to 4 or 3 to 4 carbon atoms, or R6 and R7 each mean a hydrogen atom, or R6 and R7 together mean an ?- or ?-position methylene group or an additional bond.