Azetidine-substituted pyridine and pyrazine compounds as inhibitors of cannabinoid receptor 2
US-12180196-B2 · Dec 31, 2024 · US
US12195448B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12195448-B2 |
| Application number | US-202318134378-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 13, 2023 |
| Priority date | Dec 10, 2020 |
| Publication date | Jan 14, 2025 |
| Grant date | Jan 14, 2025 |
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The invention relates to substituted pyrazolo piperidine carboxylic acids, their salts and to processes for their preparation, and also to their use for preparing medicaments for the treatment and/or prophylaxis of diseases, in particular cardiovascular and cardiac diseases, preferably heart failure with reduced and preserved ejection fraction (HFrEF, HFmrEF and HFpEF), hypertension (HTN), peripheral arterial diseases (PAD, PAOD), cardio-renal and kidney diseases, preferably chronic and diabetic kidney disease (CKD and DKD), cardiopulmonary and lung diseases, preferable pulmonary hypertension (PH), and other diseases, preferably neurodegenerative diseases and different forms of dementias, fibrotic diseases, systemic sclerosis (SSc), sickle cell disease (SCD), wound healing disorders such as diabetic foot ulcer (DFU).
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The invention claimed is: 1. A compound of the formula (I) in which R 1 represents hydrogen or halogen, R 2 represents hydrogen or halogen, R 3 represents chloro or trifluoromethyl, R 4 represents hydrogen or C 1 -C 4 -alkyl, R 5 represents C 1 -C 6 -alkyl, X 1 represents nitrogen or carbon, and X 2 represents nitrogen or carbon, or salts thereof, solvates thereof or solvates of salts thereof. 2. The compound according to claim 1 , characterized in that R 1 represents hydrogen or fluorine, R 2 represents hydrogen or fluorine, R 3 represents chloro or trifluoromethyl, R 4 represents hydrogen or methyl, R 5 represents isobutyl, X 1 represents carbon, and X 2 represents carbon or salts thereof, solvates thereof or solvates of salts thereof. 3. The compound according to claim 1 , of the formula or salts thereof, solvates thereof or solvates of salts thereof. 4. The compound according to claim 1 , of the formula or salts thereof, solvates thereof or solvates of salts thereof. 5. The compound according to claim 1 , of the formula 6. The compound according to claim 1 , of the formula 7. A process for preparing a compound of the formula (I) or salts thereof, solvates thereof or solvates of salts thereof according to claim 1 , comprising in a first step [D] reacting a compound of the formula (VIII) in which R 1 , R 2 and R 3 are defined according to claim 1 , with a compound of the formula (VII) in which R 4 , R 5 , and X 1 and X 2 are defined according to claim 1 , and R 9 represents hydrogen, methyl or both R 9 form via the adjacent oxygen atoms a 4,4,5,5-tetramethyl-1,3,2-dioxaborolan in the presence of a palladium source, a suitable ligand and a base to provide a compound of the formula (II) in which R 1 , R 2 , R 3 , R 4 , R 5 and X 1 and X 2 are defined according to claim 1 and in a second step [A] reacting a compound of formula (II) with a base in a suitable solvent to provide a compound of the formula (I), in which R 1 , R 2 , R 3 , R 4 , R 5 and X 1 and X 2 are defined according to claim 1 , and optionally transferring compounds of formula (I) in a third step [A]* into the corresponding salts of formula (Ia) in the presence of a suitable acid in a suitable solvent. 8. A method for treatment of a disease or condition comprising administering a therapeutically effective amount of the compound according to claim 1 to a human or animal in need thereof, wherein the disease or condition is chronic kidney disease and diabetic kidney disease (CKD, DKD). 9. A medicament comprising the compound according to claim 1 in combination with an inert, nontoxic, pharmaceutically suitable excipient. 10. A method for treatment of chronic kidney disease and diabetic kidney disease (CKD, DKD) in humans and animals comprising administering a therapeutically effective amount of at least one compound according to claim 1 to a human or animal in need thereof. 11. The method of claim 8 , wherein the compound is of the formula or salts thereof, solvates thereof or solvates of salts thereof. 12. The method of claim 10 , wherein the compound is of the formula or salts thereof, solvates thereof or solvates of salts thereof. 13. The method of claim 8 , wherein the compound is of the formula or salts thereof, solvates thereof or solvates of salts thereof. 14. The method of claim 10 , wherein the compound is of the formula or salts thereof, solvates thereof or solvates of salts thereof. 15. The method of claim 8 , wherein the compound is of the formula 16. The method of claim 10 , wherein the compound is of the formula 17. The method of claim 8 , wherein the compound is of the formula 18. The method of claim 10 , wherein the compound is of the formula
directly linked by a ring-member-to-ring-member bond · CPC title
Drugs for disorders of the respiratory system · CPC title
for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia · CPC title
Drugs for immunological or allergic disorders · CPC title
of the kidneys · CPC title
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