Steroide anionic compounds, method of their production, usage and pharmaceutical preparation involving them

Compounds of general formula (I)

• where R1 stands for a group with formula R3OOC—R2—C(R4)—R5—,
• where R2 stands for alkyl or alkenyl group with 1 to 18 carbon in a straight or a branching carbon chain, which may be substituted by one or more
• halogen atoms,
• amino group, which may be either free or protected by a removable protecting group,
• alkoxycarbonyl group,
• aromatic group, and/or
• heterocyclic group, in which the heteroatom means oxygen atom, sulfur, or nitrogen atom;
• R3 represents either a hydrogen atom or a protecting group of carboxyl groups;
• R4 is selected from a group consisting of oxygen, nitrogen, sulfur and two single bonded hydrogens;
• and
• R5 ;
• is a bivalent atom selected from a group consisting of oxygen, nitrogen, and carbon;
• with the proviso that R1 is not;
• when R2 is (CH2) 0-3, R3 is a hydrogen and both R4 and R5 are oxygen.