Nonsteroidal gestagens

A compound of formula I

• in which
• R1 and R2 are the same or different and each stands for a hydrogen atom, a C1-C5, alkyl, or a halogen atom, or R1 and R2 together with the C-atom of the chan form a 3-7-membered ring;
• R3 stands for a C1-C5 alkyl group or a partially or completely fluorinated C1-C5 alkyl group;
• A stands for a monocyclic or bicyclic, carbocylic or heterocyclic, aromatic ring that is optionally substituted by one or more radicals, selected from halogen atoms,
• C1-C5 alkyl groups,
• C2-C5 alkenyl groups -CR5=CR6R7,
• hydroxy groups, or
• hydroxy groups that carry a C1-C10 acyl group, a C3-C10 carbalkoxyalkyl group, a C2-C5 cyanalkyl group, a C3-C10 unsubstituted or substituted allyl group, a C3-C10 unsubstituted or substituted propargyl group, a C2-C5 alkoxyalkyl gorup, a C1-C5 alkyl group that is partially or completely substituted by fluorine atoms,
• a cyano group,
• a nitro group,
• C1-C5 alkoxy groups,
• C1-C5 alkyltho groups,
• mono- or disubstituted C1-C10 amino groups, or
• partially or completely fluorinated C1-C5 alkyl groups;
• A may also stand for an ester group -COOR4, a C2-C5 alkenyl group -CR5’=CR6’R7’, an alkynyl group -C≡CR5, or a partially or completely fluorinated C1-C5 alkyl group;
• R4 is a C1-C5 alkyl group:
• R5, R6 and R7 are the same or different and, independently of one another, are each hydrogen atoms or C1-C5 alkyl groups;
• R5’, R6’ and R7’ are the same or different, and, independently of one another, mean hydrogen atoms, halogen atoms, aryl radical or C1-C5 alkyl groups;
• B stands for a carbonyl group or a CH2 group;
• and
• Ar stands for a ring system, selected from the group of partial formulas 5 and 8,
• in which
• radicals X3a, X3b, X4, X6, X7, Y4, Y5, Y7 and Y8 are each the same or different and are selected from hydrogen atoms C1-C5 alkyl groups, which in addition may contain a hydroxy group that is optionally etherified with a C1-C5 alkyl group or esterified with a C1-C5 alkanoyl group, partially or completely fluorinated C1-C5 alkyl groups, C2-C5 alkenyl groups -CR5=CR6R7, alkynyl groups -C≡CR5, radicals X3a and X3b also together with the C-atom of benzocondensed ring system of partial formula 5 may form a 3-7 membered ring, and radicals X4, X6, X7, Y4, Y5, Y7, Y8 in partial formulas 5 and 8 may also be selected from halogen atoms, hydroxy groups, C1-C5 alkoxy groups or C1-C5 alkanoyloxy groups;
• also, if B in general formula I is a CH2 group, Ar can also be a phenyl radical of partial formula 12,
• in which
• R9 and R10 are the same or different and mean a cyano group, a nitro group, a halogen atom, a C1-C5 alkyl group, a partially or completely fluorinated C1-C5 alkyl group, a C1-C5 alkylthio group, a C1-C5 alkylsulfinyl group or a C1-C5 alkylsylfonyl group;
• or
• if B stands for a CH2 group, a physiologically compatible salt of a compound of formula I.