# US 10,308,620 B2 · Muscarinic M1 receptor positive allosteric modulators

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,308,620 B2
- Document ID: US10308620B2
- Status: Granted
- Kind: B2
- Application number: 15/580,632
- Filed: 2016-06-08
- Published: 2018-06-07
- Granted: 2019-06-04
- Earliest claimed: 2015-06-08
- Assignees: Suven Life Sciences Limited
- Applicants: Suven Life Sciences Limited
- Inventors: Ramakrishna Nirogi; Abdul Rasheed Mohammed; Anil Karbhari Shinde; Shankar Reddy Gagginapally; Venkateswarlu Jasti
- Web page: https://patentgrep.com/patent/US10308620B2

## CPC

- C07D 265/36: condensed with one six-membered ring
- A61P 25/18: Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia
- A61P 25/28: 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
- C07D 279/16: condensed with one six-membered ring
- C07D 413/06: linked by a carbon chain containing only aliphatic carbon atoms
- C07D 413/12: linked by a chain containing hetero atoms as chain links
- C07D 413/14: containing three or more hetero rings
- C07D 417/06: linked by a carbon chain containing only aliphatic carbon atoms
- C07D 498/04: Ortho-condensed systems
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS

## Abstract

The present invention relates to compound of formula (I), or stereoisomers and pharmaceutically acceptable salts as muscarinic M1 receptor positive allosteric modulators. This invention also relates to methods of preparing such compounds and pharmaceutical compositions comprising such compounds. The compounds of this invention are useful in the treatment of various disorders that are related to muscarinic M1 receptor.

## Claims

### Claim 1

A compound of formula (I),
wherein:
A1 and A2 are each independently represents CH, CF or N;
W is O, S, S(O) or S(O)2;
R1 is
R2 is
wherein * represents point of attachment;
R3 is OH, F, NH2 or H;
R4 at each occurrence is independently selected from halogen, —O—CH3; —S—CH3, —N(CH3)2, —CH3, —CF3, —CHF2, —CH2F, —OH, —CN, phenyl, pyridyl and hydrogen; wherein phenyl and pyridyl are optionally substituted with one or more substituents selected from the group consisting of halogen or CH3;
X is CH2, O or NH; and
a is 0 or 1; and b is 1 or 2;
or an isotopic form, a stereoisomer, a tautomer or a pharmaceutically acceptable salt thereof.

### Claim 2 (depends on 1)

The compound of formula (I) as claimed in claim 1, wherein:
W is O;
A1 and A2 are CH;
R1 is
and
R2 is

### Claim 3 (depends on 1)

The compound of formula (I) as claimed in claim 1, wherein:
W is S;
A1 and A2 are CH;
R1 is
and
R2 is

### Claim 4 (depends on 1)

The compound of formula (I) as claimed in claim 1, wherein:
W is O;
A1 and A2 are CH;
R1 is
R2 is
and
X is CH2.

### Claim 5 (depends on 1)

The compound of formula (I) as claimed in claim 1, wherein:
W is S;
A1 and A2 are CH;
R1 is
R2 is
and
X is CH2.

### Claim 6 (depends on 1)

The compound according to claim 1, wherein the compound is selected from the group consisting of:
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{2-fluorobenzyl}-4H-pyrido[3,2-b][1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(4-methoxybenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(4-methoxybenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(3-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-methoxybenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(3-methoxybenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methoxypyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(2-methoxypyridin-4-yl methyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(4-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(4-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methoxy pyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(2-methoxypyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-trifluoromethylbenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2,3-difluoro benzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3,4-difluoro benzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydrpyran-4-yl)-4-(2,3-difluoro benzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chloropyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridin-3-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chloropyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridin-2-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3,4-dichloro benzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methylpyridin-3-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2,4-dichlorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2,3-difluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-4H-pyrido[3,2-b][1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-1-Benzyl-1H-pyrido[2,3-b][1,4]oxazine-3-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-1-{2,3-difluorobenzyl}-1H-pyrido[2,3-b][1,4]oxazine-3-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2,3-difluorobenzyl)-4H-pyrido[3,2-b][1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-fluoropyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(4-fluorobenzyl)-4H-pyrido[3,2-b][1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-1-(3-fluorobenzyl)-1H-pyrido[2,3-b][1,4]oxazine-3-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-trifluoromethylbenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chlorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(trans-1R,2R-2-Hydroxycyclopentyl)-4-(2,3-difluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(trans-1R,2R-2-Hydroxycyclopentyl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chlorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(trans-1R, 2R-2-Hydroxycyclopentyl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxymethylphenyl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxymethylphenyl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxymethylphenyl)-4-(2,3-difluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxymethylphenyl)-4-(2-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(1-Hydroxymethyl-2-methylpropyl)-8-fluoro-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1R, 2R-2-Hydroxycyclohexyl)-4-{2-fluorobenzyl}-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1R, 2R-2-Hydroxycyclohexyl)-4-{2-fluorobenzyl}-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{3-fluorobenzyl}-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-phenylpyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2-phenylpyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chloropyridin-4-ylmethyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-fluorobenzyl)-5-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridine-2-ylmethyl)-5-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridine-4-ylmethyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(6′-Fluoro-5′-methyl-[2,3′]bipyridinyl-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-[2-(1-methyl-1H-pyrazol-3-yl)-pyridin-4-ylmethyl]-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(1-methyl-1H-pyrazol-3-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-fluorobenzyl)-5,8-difluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(3-fluoropyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2-methylpyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2-methylpyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methylpyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methylpyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-5,8-difluoro-4-(pyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(3-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(4-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(3-trifluoromethylbenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(2-methoxypyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(pyridin-4-ylmethyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Fluoropiperidin-4-yl)-4-(2-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Fluoropiperidin-4-yl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-hydroxy cyclohexyl)-4-(2,3-difluorobenzyl)-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-fluorobenzyl)-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{4-methoxybenzyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{4-fluorobenzyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{pyridin-4-yl-methyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{2-chloropyridin-5-yl-methyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{pyridin-2-yl-methyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2,3-difluorobenzyl)-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{3-fluorobenzyl}-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{pyridin-2-yl-methyl}-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{2-chloropyridin-5-yl-methyl}-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(4-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(4-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(2,3-difluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide; and
N-(3-Hydroxypiperidin-4-yl)-4-(2-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
or a pharmaceutically acceptable salt thereof.

### Claim 7 (depends on 6)

The compound according to claim 6, wherein the pharmaceutically acceptable salt is selected from the group consisting of:
N-(3-Fluoropiperidin-4-yl)-4-(2-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide hydrochloride;
N-(3-Fluoropiperidin-4-yl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide hydrochloride;
N-(3-Hydroxypiperidin-4-yl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate;
N-(3-Hydroxypiperidin-4-yl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate;
N-(3-Hydroxypiperidin-4-yl)-4-(4-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate;
N-(3-Hydroxypiperidin-4-yl)-4-(4-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate;
N-(3-Hydroxypiperidin-4-yl)-4-(2,3-difluorobenzy)-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate; and
N-(3-Hydroxypiperidin-4-yl)-4-(2-fluorobenzy)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate.

### Claim 8 (depends on 1)

A pharmaceutical composition comprising a compound according to claim 1, and pharmaceutically acceptable excipients or carriers.

### Claim 9 (depends on 1)

A method for treating a disorder related to muscarinic M1 receptor selected from the group consisting of Alzheimer's disease, schizophrenia, cognitive disorders, pain, and sleep disorders, comprising administering to a patient in need thereof a therapeutically effective amount of a compound, or a pharmaceutically acceptable salt thereof, according to claim 1.

### Claim 10 (depends on 9)

The method according to claim 9, wherein the compound is selected from the group consisting of:
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{2-fluorobenzyl}-4H-pyrido[3,2-b][1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(4-methoxybenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(4-methoxybenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(3-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-methoxybenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(3-methoxybenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methoxypyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(2-methoxypyridin-4-yl methyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(4-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(4-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methoxy pyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxy-2-methylpropyl)-4-(2-methoxypyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-trifluoromethylbenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2,3-difluoro benzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3,4-difluoro benzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydrpyran-4-yl)-4-(2,3-difluoro benzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chloropyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridin-3-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chloropyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridin-2-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3,4-dichloro benzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methylpyridin-3-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2,4-dichlorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2,3-difluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-4H-pyrido[3,2-b][1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-1-Benzyl-1H-pyrido[2,3-b][1,4]oxazine-3-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-1-{2,3-difluorobenzyl}-1H-pyrido[2,3-b][1,4]oxazine-3-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2,3-difluorobenzyl)-4H-pyrido[3,2-b][1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-fluoropyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(4-fluorobenzyl)-4H-pyrido[3,2-b][1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-1-(3-fluorobenzyl)-1H-pyrido[2,3-b][1,4]oxazine-3-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-trifluoromethylbenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chlorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(trans-1R,2R-2-Hydroxycyclopentyl)-4-(2,3-difluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(trans-1R,2R-2-Hydroxycyclopentyl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chlorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(trans-1R, 2R-2-Hydroxycyclopentyl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxymethylphenyl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxymethylphenyl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxymethylphenyl)-4-(2,3-difluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(2-Hydroxymethylphenyl)-4-(2-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(1-Hydroxymethyl-2-methylpropyl)-8-fluoro-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1R, 2R-2-Hydroxycyclohexyl)-4-{2-fluorobenzyl}-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1R, 2R-2-Hydroxycyclohexyl)-4-{2-fluorobenzyl}-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{3-fluorobenzyl}-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-phenylpyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2-phenylpyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-chloropyridin-4-ylmethyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-fluorobenzyl)-5-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridine-2-ylmethyl)-5-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(pyridine-4-ylmethyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(6′-Fluoro-5′-methyl-2,3′bipyridinyl-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-[2-(1-methyl-1H-pyrazol-3-yl)-pyridin-4-ylmethyl]-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(1-methyl-1H-pyrazol-3-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-fluorobenzyl)-5,8-difluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(3-fluoropyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2-methylpyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-8-fluoro-4-(2-methylpyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methylpyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2-methylpyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-5,8-difluoro-4-(pyridin-4-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(3-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(4-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(3-trifluoromethylbenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(2-methoxypyridin-5-ylmethyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxytetrahydropyran-4-yl)-4-(pyridin-4-ylmethyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Fluoropiperidin-4-yl)-4-(2-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Fluoropiperidin-4-yl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(cis-1S, 2S-2-hydroxy cyclohexyl)-4-(2,3-difluorobenzyl)-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(3-fluorobenzyl)-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{4-methoxybenzyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{4-fluorobenzyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{pyridin-4-yl-methyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{2-chloropyridin-5-yl-methyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{pyridin-2-yl-methyl}-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-(2,3-difluorobenzyl)-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-benzyl-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{3-fluorobenzyl}-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{pyridin-2-yl-methyl}-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(cis-1S, 2S-2-Hydroxycyclohexyl)-4-{2-chloropyridin-5-yl-methyl}-1-oxo-4H-benzo[1,4]thiazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(4-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(4-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide;
N-(3-Hydroxypiperidin-4-yl)-4-(2,3-difluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide; and
N-(3-Hydroxypiperidin-4-yl)-4-(2-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide;
or a pharmaceutically acceptable salt thereof.

### Claim 11 (depends on 10)

The method according to claim 10, wherein the pharmaceutically acceptable salt is selected from the group consisting of:
N-(3-Fluoropiperidin-4-yl)-4-(2-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide hydrochloride;
N-(3-Fluoropiperidin-4-yl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide hydrochloride;
N-(3-Hydroxypiperidin-4-yl)-4-(2,3-difluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate;
N-(3-Hydroxypiperidin-4-yl)-4-(2-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate;
N-(3-Hydroxypiperidin-4-yl)-4-(4-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate;
N-(3-Hydroxypiperidin-4-yl)-4-(4-fluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate;
N-(3-Hydroxypiperidin-4-yl)-4-(2,3-difluorobenzyl)-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate; and
N-(3-Hydroxypiperidin-4-yl)-4-(2-fluorobenzyl)-8-fluoro-4H-benzo[1,4]oxazine-2-carboxamide trifluoroacetate.

### Claim 12 (depends on 9)

The method according to claim 9, wherein the disorder related to muscarinic M1 receptor is Alzheimer's disease.

### Claim 13 (depends on 9)

The method according to claim 9, wherein the disorder related to muscarinic M1 receptor is schizophrenia.

### Claim 14 (depends on 9)

The method according to claim 9, wherein the disorder related to muscarinic M1 receptor is a cognitive disorder.

### Claim 15 (depends on 9)

The method according to claim 9, wherein the disorder related to muscarinic M1 receptor is pain.

### Claim 16 (depends on 9)

The method according to claim 9, wherein the disorder related to muscarinic M1 receptor is a sleep disorder.