lormetazepam   Click here for help

GtoPdb Ligand ID: 7553

Synonyms: chlorotemazepam | Dormagen® | methyllorazepam | WY-4082
Approved drug
lormetazepam is an approved drug
Compound class: Synthetic organic
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View more information in the IUPHAR Pharmacology Education Project: lormetazepam

2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 4
Hydrogen bond donors 1
Rotatable bonds 1
Topological polar surface area 52.9
Molecular weight 334.03
XLogP 3.61
No. Lipinski's rules broken 0

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES Clc1ccc2c(c1)C(=NC(C(=O)N2C)O)c1ccccc1Cl
Isomeric SMILES Clc1ccc2c(c1)C(=NC(C(=O)N2C)O)c1ccccc1Cl
InChI InChI=1S/C16H12Cl2N2O2/c1-20-13-7-6-9(17)8-11(13)14(19-15(21)16(20)22)10-4-2-3-5-12(10)18/h2-8,15,21H,1H3
InChI Key FJIKWRGCXUCUIG-UHFFFAOYSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
No information available.
Summary of Clinical Use Click here for help
Used to treat moderate-to-severe insomnia. This drug is not approved by the US FDA or the EMA. Individual national approval agencies may have granted marketing authorisation. The UK first approved use of this drug in 2009.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Lormetazepam is a non-selective positive allosteric modulator of GABAA channels, which binds to the benzodiazepine allosteric site. The drug enhances the inhibitory effects of GABA, which results in anxiolytic, muscle relaxant; anticonvulsant and sleep-promoting effects.
External links Click here for help
For extended ADME data see the following:

Electronic Medicines Compendium (eMC)