Thiadiazine derivatives

Patent metadata

Field	Value
Publication number	US-2021267993-A1
Application number	US-201917259975-A
Country	US
Kind code	A1
Filing date	Jul 12, 2019
Priority date	Jul 13, 2018
Publication date	Sep 2, 2021
Grant date	—

Abstract

The invention relates to thiadiazine derivatives, or pharmaceutically acceptable salts, biologically active metabolites, pro-drugs, racemates, enantiomers, diastereomers, solvates and hydrates thereof, as well as to pharmaceutical compositions containing them and to their use as modulators of α7 nicotinic acetylcholine receptor activity in a mammalian subject Formula (I):

First claim

1 . A compound of formula (I),

wherein
A is saturated, unsaturated or aromatic, monocyclic or bycyclic, fused or bridged carbocyclyl, or a saturated, unsaturated or aromatic monocyclic or bycyclic, fused or bridged heterocyclyl, optionally substituted by one or more halogen atom or halogen atoms, C 1-6 alkyl, C 1-6 alkoxy, or haloC 1-6 alkyl;
B is saturated, unsaturated or aromatic, monocyclic or bycyclic, fused or bridged carbocyclyl, or a saturated, unsaturated or aromatic monocyclic or bycyclic, fused or bridged heterocyclyl, optionally substituted by one or more halogen atom or halogen atoms, C 1-6 alkyl, C 1-6 alkoxy, haloC 1-6 alkyl, CN, C(O)C 1-6 alkyl, or haloC 1-6 alkoxy;
R 1 is C 1-6 alkyl, C 1-6 alkenyl, haloC 1-6 alkyl, C 3-8 cycloalkylC 1-6 alkyl, C 1-6 alkoxyC 1-6 alkyl, or C 4-6 heterocyclyl;
or pharmaceutically acceptable salts, biologically active metabolites, pro-drugs, racemates, enantiomers, diastereomers, solvates and hydrates thereof.

2 . The compound according to claim 1 , wherein
A is an optionally substituted saturated, unsaturated or aromatic, 4-9 membered monocyclic or bycyclic, fused or bridged carbocyclyl, or a saturated, unsaturated or aromatic 4-9 membered monocyclic or bycyclic, fused or bridged heterocyclyl containing 1-3 heteroatoms selected from the group of nitrogen, and oxygen; B is an optionally substituted saturated, unsaturated or aromatic, 4-9 membered monocyclic or bycyclic, fused or bridged carbocyclyl, or a saturated, unsaturated or aromatic 4-9 membered monocyclic or bycyclic, fused or bridged heterocyclyl containing 1-3 heteroatoms selected from the group of nitrogen, and oxygen; R 1 is C 1-6 alkyl, C 1-6 alkenyl, haloC 1-6 alkyl, C 3-8 cycloalkylC 1-6 alkyl, C 1-6 alkoxyC 1-6 alkyl, or C 4-6 heterocyclyl.

3 . The compound according to any one of claims 1 or 2 , wherein
A is an optionally substituted cyclopentenyl, cyclohexyl, phenyl, cycloheptyl, bicyclo[3.1.0]hexanyl or indazolyl;
B is an optionally substituted phenyl, pyridyl, pyrazyl, pyrazinyl, pyrimidinyl, benzodioxolyl, 1,2,3,4-tetrahydro-isoquinolinyl, or pyrazolo[1,5-a]pyridinyl;
R1 is CH 3 , C 2 H 5 , nPr, iPr, nBu, secBu, allyl, —CH 2 —CF 3 , —CH 2 -cBu, —CH 2 -cPr, —C 2 H 5 —O—CH 3 , or tetrahydrofuryl.

4 . The compound according to any one of claims 1 to 3 , selected from the group of:
5-(3,4-dimethoxyphenyl)-2-methyl-N-(3-methylphenyl)-1,1-dioxo-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(1,3-dimethyl-1H-indazol-5-yl)-2-methyl-N-(3-methylphenyl)-1,1-dioxo-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3,4-dimethoxyphenyl)-2-ethyl-N-(3-methylphenyl)-1,1-dioxo-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3,4-dimethoxyphenyl)-2-ethyl-1,1-dioxo-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
2-ethyl-5-[4-methoxy-3-(trifluoromethyl)phenyl]-N-(3-methoxyphenyl)-1,1-dioxo-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
2-ethyl-5-[4-methoxy-3-(trifluoromethyl)phenyl]-N-(4-methoxyphenyl)-1,1-dioxo-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
2-ethyl-1,1-dioxo-5-[(1r,4r)-4-(trifluoromethyl)cyclohexyl]-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
N-(6-cyanopyridin-2-yl)-2-ethyl-1,1-dioxo-5-[(1r,4r)-4-(trifluoromethyl)cyclohexyl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3,4-dimethoxyphenyl)-1,1-dioxo-2-(propan-2-yl)-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3,4-dimethoxyphenyl)-1,1-dioxo-2-propyl-N-[3-(trifluoromethyl)phenyl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3,4-dimethoxyphenyl)-1,1-dioxo-2-propyl-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-[4-methoxy-3-(trifluoromethyl)phenyl]-1,1-dioxo-2-propyl-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(4-methoxy-3-methylphenyl)-1,1-dioxo-2-propyl-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3-chloro-4-methoxyphenyl)-1,1-dioxo-2-propyl-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
2-(cyclopropylmethyl)-1,1-dioxo-5-[(1r,4r)-4-(trifluoromethyl)cyclohexyl]-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3,4-dimethoxyphenyl)-1,1-dioxo-2-(prop-2-en-1-yl)-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3,4-dimethoxyphenyl)-N-(4-methoxyphenyl)-1,1-dioxo-2-propyl-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3,4-dimethoxyphenyl)-N-(3-methylphenyl)-1,1-dioxo-2-propyl-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-[4-methoxy-3-(trifluoromethyl)phenyl]-1,1-dioxo-2-propyl-N-[3-(trifluoromethyl)phenyl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
5-(3,4-dimethoxyphenyl)-N-(6-fluoropyridin-2-yl)-1,1-dioxo-2-(propan-2-yl)-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
N-(6-fluoropyridin-2-yl)-1,1-dioxo-2-(propan-2-yl)-5-[(1r,4r)-4-(trifluoromethyl)cyclohexyl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
2-(cyclopropylmethyl)-N-(6-fluoropyrazin-2-yl)-1,1-dioxo-5-[(1r,4r)-4-(trifluoromethyl)cyclohexyl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
2-[(2R)-butan-2-yl]-5-(3,4-dimethoxyphenyl)-1,1-dioxo-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
2-ethyl-5-[4-methoxy-3-(trifluoromethyl)phenyl]-1,1-dioxo-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
1,1-dioxo-2-(propan-2-yl)-5-[(1r,4r)-4-(trifluoromethyl)cyclohexyl]-N-[6-(trifluoromethyl)pyrazin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
2-(cyclopropylmethyl)-5-(4,4-difluorocyclohexyl)-1,1-dioxo-N-[6-(trifluoromethyl)pyridin-2-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
2-(cyclopropylmethyl)-1,1-dioxo-5-[(1r,4r)-4-(trifluoromethyl)cyclohexyl]-N-[2-(trifluoromethyl)pyrimidin-4-yl]-2H-1λ 6 ,2,6-thiadiazine-3-carboxamide;
or pharmaceutically acceptable salts, biologically active metabolites, pro-drugs, racemates, enantiomers, diastereomers, solvates and hydrates thereof.

5 . A compound according to any one of claims 1 to 4 , for use in the treatment or prevention of a disease associated with α7 nicotinic acetylcholine receptor activity.

6 . A compound according to claim 5 , wherein the disease is selected from the group of psychotic disorders, including, but not limited to, schizophrenia, schizophreniform disorder, schizoaffective disorder, delusional disorder, brief psychotic disorder, psychotic disorder due to a general medical condition, substance-induced psychotic disorder or psychotic disorder not otherwise specified, cognitive impairment, including, but not limited to, cognitive impairment as a result of stroke, Alzheimer's disease, Huntington's disease, Pick disease, HIV associated dementia, frontotemporal dementia, Lewy body dementia, vascular dementia, cerebrovascular disease or other dementia states and dementia associated to other degenerative disorders, including, but not limited to, amyotrophic lateral sclerosis, other acute or sub-acute conditions that may cause cognitive decline, including, but not limited to, delirium, traumatic brain injury, senile dementia, mild cognitive impairment, Down's syndrome, depression and cognitive deficit related to other diseases, and dyskinetic disorders including, but not limited to, Parkinson's disease, neuroleptic-induced parkinsonism, or tardive dyskinesias, depression and mood disorders, including, but not limited to, depressive disorders and episodes, bipolar disorders, cyclothymic disorder, and bipolar disorder not otherwise specified, other mood disorders, substance-induced mood disorder and mood disorder not otherwise specified, anxiety disorders, panic disorder and panic attacks, obsessive compulsive disorder, posttraumatic stress disorder, acute stress disorder, generalized anxie

Assignees

• Richter Gedeon Nyrt

Inventors

• Ledneczki István
• Éles János
• Tapolcsányi Pál
• Jablonkai Erszébet
• Gábor Esrter
• Visegrádi András
• Némethy Zsolt
• Lévay György István
• Petro József Levente
• Selényi György

Classifications

• A61K31/549 Primary

  having two or more nitrogen atoms in the same ring, e.g. hydrochlorothiazide · CPC title

• C07D417/04 Primary

  directly linked by a ring-member-to-ring-member bond · CPC title

• A61P25/18

  Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia · CPC title

• C07D471/04

  Ortho-condensed systems · CPC title

• A61P25/00

  Drugs for disorders of the nervous system · CPC title