Substituted vitamin d analogues and their therapeutic uses

A 2-substituted-14-epi-19-nor-vitamin D analogue having the general formula (I)

• wherein:
• P is selected from the group consisting of hydrogen, alkyl, cycloalkyl, acyl, and other protecting groups;
• carbon atom 20 may have either the R or S configuration;
• the hydrogen atom at carbon atom 14 is in the β configuration;
• R is selected from the group consisting of hydrogen and normal or branched alkyl groups having from 1 to 5 carbon atoms and being optionally substituted with one or more functional atoms or groups selected from the group consisting of fluoro, chloro, hydroxy, sulfhydryl and amino;
• R′ is hydrogen;
• and
• X represents an alkyl side-chain consisting of 2 to 15 carbon atom which can be substituted or functionalised as follows:
• hydroxyl substituent at one or more positions, for instance at position 24, 25 and/or 26, and/or
• methyl or ethyl substituent in one or more positions, for instance at position 24, 26 and/or 27, and/or
• halogen substituent(s) at one or more positions, for instance perfluorated at positions 26 and/or 27 or difluorated at position 24, and/or
• esters derivatives or ether derivatives of one or more hydroxyl substituents mentioned above, and/or
• changing one or more carbon atoms for an oxygen, nitrogen or sulfur atom, for instance at one or more of positions 22, 23 and 24, and/or
• cyclized between the carbon atoms 26 and 27 by one bond (cyclopropane) or by the intermediacy of 1 to 4 carbon atoms, the resulting ring being saturated, unsaturated or aromatic and being optionally substituted at any possible position(s) with one or more substituents mentioned above, and/or
• cyclized at one carbon or between two carbon atoms by 1 to 4 atoms to form a heterocyclic ring, including aromatic, which may be substituted at any possible position with one or more substituents mentioned above, and/or
• unsaturated with one or more double or triple C—C bond(s), these unsaturated chains being optionally substituted at any possible position by one or more substituents mentioned above, and/or
• epoxidized once or more between carbon atoms (preferably between 22 and 23, or between 23 and 24, or between 24 and 25, or between 25 and 26), the resulting epoxidized chain(s) being saturated or unsaturated and, when saturated, optionally substituted at any possible positions with one or more substituents mentioned above, and/or
• two or more of the carbon atoms of said alkyl side-chain X being linked by a single bond or by the intermediacy of 1 to 5 carbon or oxygen or nitrogen or sulfur atoms to form a 3-7 membered saturated or unsaturated carbocyclic (including aromatic) or heterocyclic ring which may be substituted at any possible position(s) by one or more substituents mentioned above, and/or
• substituted at one or more positions by one or more saturated or unsaturated, carbocyclic (including aromatic) or heterocyclic rings which can be substituted at any possible position(s) with one or more substituents mentioned above,
• including all possible isomeric forms of said alkyl side-chain X.

A pharmaceutical preparation comprising a therapeutically effective amount of a 2-substituted-14-epi-19-nor-vitamin D analogue having the general formula (I)

• wherein:
• P is selected from the group consisting of hydrogen, alkyl, cycloalkyl, acyl, and other protecting groups;
• carbon atom 20 may have either the R or S configuration;
• the hydrogen atom at carbon atom 14 is in the α configuration;
• R is selected from the group consisting of hydrogen and normal or branched alkyl groups having from 1 to 5 carbon atoms and being optionally substituted with one or more functional atoms or groups selected from the group consisting of fluoro, chloro, hydroxy, sulfhydryl and amino;
• R′ is hydrogen;
• and
• X represents an alkyl side-chain consisting of 2 to 15 carbon atom which can be substituted or functionalised as follows:
• hydroxyl substituent at one or more positions, for instance at position 24, 25 and/or 26, and/or
• methyl or ethyl substituent in one or more positions, for instance at position 24, 26 and/or 27, and/or
• halogen substituent(s) at one or more positions, for instance perfluorated at positions 26 and/or 27 or difluorated at position 24, and/or
• esters derivatives or ether derivatives of one or more hydroxyl substituents mentioned above, and/or
• changing one or more carbon atoms for an oxygen, nitrogen or sulfur atom, for instance at one or more of positions 22, 23 and 24, and/or
• cyclized between the carbon atoms 26 and 27 by one bond (cyclopropane) or by the intermediacy of 1 to 4 carbon atoms, the resulting ring being saturated, unsaturated or aromatic and being optionally substituted at any possible position(s) with one or more substituents mentioned above, and/or
• cyclized at one carbon or between two carbon atoms by 1 to 4 atoms to form a heterocyclic ring, including aromatic, which may be substituted at any possible position with one or more substituents mentioned above, and/or
• unsaturated with one or more double or triple C—C bond(s), these unsaturated chains being optionally substituted at any possible position by one or more substituents mentioned above, and/or
• epoxidized once or more between carbon atoms (preferably between 22 and 23, or between 23 and 24, or between 24 and 25, or between 25 and 26), the resulting epoxidized chain(s) being saturated or unsaturated and, when saturated, optionally substituted at any possible positions with one or more substituents mentioned above, and/or
• two or more of the carbon atoms of said alkyl side-chain X being linked by a single bond or by the intermediacy of 1 to 5 carbon or oxygen or nitrogen or sulfur atoms to form a 3-7 membered saturated or unsaturated carbocyclic (including aromatic) or heterocyclic ring which may be substituted at any possible position(s) by one or more substituents mentioned above, and/or
• substituted at one or more positions by one or more saturated or unsaturated, carbocyclic (including aromatic) or heterocyclic rings which can be substituted at any possible position(s) with one or more substituents mentioned above,
• including all possible isomeric forms of said alkyl side-chain X, a pharmaceutically acceptable salt or a solvate thereof, and one or more pharmaceutically and/or veterinarily acceptable carriers or diluents.

A method for inhibiting cell proliferation and/or induction of cell differentiation, comprising the administration of a therapeurically effective amount of a 2-substituted-14-epi-19-nor-vitamin D analogue having the general formula (I)

• wherein:
• P is selected from the group consisting of hydrogen, alkyl, cycloalkyl, acyl, and other protecting groups;
• carbon atom 20 may have either the R or S configuration;
• the hydrogen atom at carbon atom 14 is in the β configuration;
• R is selected from the group consisting of hydrogen and normal or branched alkyl groups having from 1 to 5 carbon atoms and being optionally substituted with one or more functional atoms or groups selected from the group consisting of fluoro, chloro, hydroxy, sulfhydryl and amino;
• R′ is hydrogen;
• and
• X represents an alkyl side-chain consisting of 2 to 15 carbon atom which can be substituted or functionalised as follows:
• hydroxyl substituent at one or more positions, for instance at position 24, 25 and/or 26, and/or
• methyl or ethyl substituent in one or more positions, for instance at position 24, 26 and/or 27, and/or
• halogen substituent(s) at one or more positions, for instance perfluorated at positions 26 and/or 27 or difluorated at position 24, and/or
• esters derivatives or ether derivatives of one or more hydroxyl substituents mentioned above, and/or
• changing one or more carbon atoms for an oxygen, nitrogen or sulfur atom, for instance at one or more of positions 22, 23 and 24, and/or
• cyclized between the carbon atoms 26 and 27 by one bond (cyclopropane) or by the intermediacy of 1 to 4 carbon atoms, the resulting ring being saturated, unsaturated or aromatic and being optionally substituted at any possible position(s) with one or more substituents mentioned above, and/or
• cyclized at one carbon or between two carbon atoms by 1 to 4 atoms to form a heterocyclic ring, including aromatic, which may be substituted at any possible position with one or more substituents mentioned above, and/or
• unsaturated with one or more double or triple C—C bond(s), these unsaturated chains being optionally substituted at any possible position by one or more substituents mentioned above, and/or
• epoxidized once or more between carbon atoms (preferably between 22 and 23, or between 23 and 24, or between 24 and 25, or between 25 and 26), the resulting epoxidized chain(s) being saturated or unsaturated and, when saturated, optionally substituted at any possible positions with one or more substituents mentioned above, and/or
• two or more of the carbon atoms of said alkyl side-chain X being linked by a single bond or by the intermediacy of 1 to 5 carbon or oxygen or nitrogen or sulfur atoms to form a 3-7 membered saturated or unsaturated carbocyclic (including aromatic) or heterocyclic ring which may be substituted at any possible position(s) by one or more substituents mentioned above, and/or
• substituted at one or more positions by one or more saturated or unsaturated, carbocyclic (including aromatic) or heterocyclic rings which can be substituted at any possible position(s) with one or more substituents mentioned above, including all possible isomeric forms of said alkyl side-chain X, a pharmaceutically acceptable salt or a solvate thereof.

A method for treating or preventing immunodisorders, comprising the administration of a therapeutically effective amount of a 2-substituted-14-epi-19-nor-vitamin D analogue having the general formula (I)

• wherein:
• P is selected from the group consisting of hydrogen, alkyl, cycloalkyl, acyl, and other protecting groups;
• carbon atom 20 may have either the R or S configuration;
• the hydrogen atom at carbon atom 14 is in the β configuration;
• R is selected from the group consisting of hydrogen and normal or branched alkyl groups having from 1 to 5 carbon atoms and being optionally substituted with one or more functional atoms or groups selected from the group consisting of fluoro, chloro, hydroxy, sulfhydryl and amino;
• R′ is hydrogen;
• and
• X represents an alkyl side-chain consisting of 2 to 15 carbon atom which can be substituted or functionalised as follows:
• hydroxyl substituent at one or more positions, for instance at position 24, 25 and/or 26, and/or
• methyl or ethyl substituent in one or more positions, for instance at position 24, 26 and/or 27, and/or
• halogen substituent(s) at one or more positions, for instance perfluorated at positions 26 and/or 27 or difluorated at position 24, and/or
• esters derivatives or ether derivatives of one or more hydroxyl substituents mentioned above, and/or
• changing one or more carbon atoms for an oxygen, nitrogen or sulfur atom, for instance at one or more of positions 22, 23 and 24, and/or
• cyclized between the carbon atoms 26 and 27 by one bond (cyclopropane) or by the intermediacy of 1 to 4 carbon atoms, the resulting ring being saturated, unsaturated or aromatic and being optionally substituted at any possible position(s) with one or more substituents mentioned above, and/or
• cyclized at one carbon or between two carbon atoms by 1 to 4 atoms to form a heterocyclic ring, including aromatic, which may be substituted at any possible position with one or more substituents mentioned above, and/or
• unsaturated with one or more double or triple C—C bond(s), these unsaturated chains being optionally substituted at any possible position by one or more substituents mentioned above, and/or
• epoxidized once or more between carbon atoms (preferably between 22 and 23, or between 23 and 24, or between 24 and 25, or between 25 and 26), the resulting epoxidized chain(s) being saturated or unsaturated and, when saturated, optionally substituted at any possible positions with one or more substituents mentioned above, and/or
• two or more of the carbon atoms of said alkyl side-chain X being linked by a single bond or by the intermediacy of 1 to 5 carbon or oxygen or nitrogen or sulfur atoms to form a 3-7 membered saturated or unsaturated carbocyclic (including aromatic) or heterocyclic ring which may be substituted at any possible position(s) by one or more substituents mentioned above, and/or
• substituted at one or more positions by one or more saturated or unsaturated, carbocyclic (including aromatic) or heterocyclic rings which can be substituted at any possible position(s) with one or more substituents mentioned above,
• including all possible isomeric forms of said alkyl side-chain X, a pharmaceutically acceptable salt or a solvate thereof.

A method for preventing or treating an inflammatory disease, a skin disorder, an hyperproliferative disorder or cancer, comprising the administration of a therapeutically effective amount of a 2-substituted-14-epi-19-nor-vitamin D analogue having the general formula (I)

• wherein:
• P is selected from the group consisting of hydrogen, alkyl, cycloalkyl, acyl, and other protecting groups;
• carbon atom 20 may have either the R or S configuration;
• the hydrogen atom at carbon atom 14 is in the β configuration;
• R is selected from the group consisting of hydrogen and normal or branched alkyl groups having from 1 to 5 carbon atoms and being optionally substituted with one or more functional atoms or groups selected from the group consisting of fluoro, chloro, hydroxy, sulfhydryl and amino;
• R′ is hydrogen;
• and
• X represents an alkyl side-chain consisting of 2 to 15 carbon atom which can be substituted or functionalised as follows:
• hydroxyl substituent at one or more positions, for instance at position 24, 25 and/or 26, and/or
• methyl or ethyl substituent in one or more positions, for instance at position 24, 26 and/or 27, and/or
• halogen substituent(s) at one or more positions, for instance perfluorated at positions 26 and/or 27 or difluorated at position 24, and/or
• esters derivatives or ether derivatives of one or more hydroxyl substituents mentioned above, and/or
• changing one or more carbon atoms for an oxygen, nitrogen or sulfur atom, for instance at one or more of positions 22, 23 and 24, and/or
• cyclized between the carbon atoms 26 and 27 by one bond (cyclopropane) or by the intermediacy of 1 to 4 carbon atoms, the resulting ring being saturated, unsaturated or aromatic and being optionally substituted at any possible position(s) with one or more substituents mentioned above, and/or
• cyclized at one carbon or between two carbon atoms by 1 to 4 atoms to form a heterocyclic ring, including aromatic, which may be substituted at any possible position with one or more substituents mentioned above, and/or
• unsaturated with one or more double or triple C—C bond(s), these unsaturated chains being optionally substituted at any possible position by one or more substituents mentioned above, and/or
• epoxidized once or more between carbon atoms (preferably between 22 and 23, or between 23 and 24, or between 24 and 25, or between 25 and 26), the resulting epoxidized chain(s) being saturated or unsaturated and, when saturated, optionally substituted at any possible positions with one or more substituents mentioned above, and/or
• two or more of the carbon atoms of said alkyl side-chain X being linked by a single bond or by the intermediacy of 1 to 5 carbon or oxygen or nitrogen or sulfur atoms to form a 3-7 membered saturated or unsaturated carbocyclic (including aromatic) or heterocyclic ring which may be substituted at any possible position(s) by one or more substituents mentioned above, and/or
• substituted at one or more positions by one or more saturated or unsaturated, carbocyclic (including aromatic) or heterocyclic rings which can be substituted at any possible position(s) with one or more substituents mentioned above,
• including all possible isomeric forms of said alkyl side-chain X, a pharmaceutically acceptable salt or a solvate thereof.

A method for treating a metabolic bone disease, comprising the administration of a therapeutically effective amount of a 2-substituted-14-epi-19-nor-vitamin D analogue having the general formula (I)

• wherein:
• P is selected from the group consisting of hydrogen, alkyl, cycloalkyl, acyl, and other protecting groups;
• carbon atom 20 may have either the R or S configuration;
• the hydrogen atom at carbon atom 14 is in the β configuration;
• R is selected from the group consisting of hydrogen and normal or branched alkyl groups having from 1 to 5 carbon atoms and being optionally substituted with one or more functional atoms or groups selected from the group consisting of fluoro, chloro, hydroxy, sulfhydryl and amino;
• R′ is hydrogen;
• and
• X represents an alkyl side-chain consisting of 2 to 15 carbon atom which can be substituted or functionalised as follows:
• hydroxyl substituent at one or more positions, for instance at position 24, 25 and/or 26, and/or
• methyl or ethyl substituent in one or more positions, for instance at position 24, 26 and/or 27, and/or
• halogen substituent(s) at one or more positions, for instance perfluorated at positions 26 and/or 27 or difluorated at position 24, and/or
• esters derivatives or ether derivatives of one or more hydroxyl substituents mentioned above, and/or
• changing one or more carbon atoms for an oxygen, nitrogen or sulfur atom, for instance at one or more of positions 22, 23 and 24, and/or cyclized between the carbon atoms 26 and 27 by one bond (cyclopropane) or by the intermediacy of 1 to 4 carbon atoms, the resulting ring being saturated, unsaturated or aromatic and being optionally substituted at any possible position(s) with one or more substituents mentioned above, and/or
• cyclized at one carbon or between two carbon atoms by 1 to 4 atoms to form a heterocyclic ring, including aromatic, which may be substituted at any possible position with one or more substituents mentioned above, and/or
• unsaturated with one or more double or triple C—C bond(s), these unsaturated chains being optionally substituted at any possible position by one or more substituents mentioned above, and/or
• epoxidized once or more between carbon atoms (preferably between 22 and 23, or between 23 and 24, or between 24 and 25, or between 25 and 26), the resulting epoxidized chain(s) being saturated or unsaturated and, when saturated, optionally substituted at any possible positions with one or more substituents mentioned above, and/or
• two or more of the carbon atoms of said alkyl side-chain X being linked by a single bond or by the intermediacy of 1 to 5 carbon or oxygen or nitrogen or sulfur atoms to form a 3-7 membered saturated or unsaturated carbocyclic (including aromatic) or heterocyclic ring which may be substituted at any possible position(s) by one or more substituents mentioned above, and/or
• substituted at one or more positions by one or more saturated or unsaturated, carbocyclic (including aromatic) or heterocyclic rings which can be substituted at any possible position(s) with one or more substituents mentioned above, including all possible isomeric forms of said alkyl side-chain X, a pharmaceutically acceptable salt or a solvate thereof.