secobarbital   Click here for help

GtoPdb Ligand ID: 7615

Synonyms: Seconal®
Approved drug
secobarbital is an approved drug (FDA (1950))
Compound class: Synthetic organic
Comment: The approved drug is a racemic mixture of enantiomers; R-secobarbital and S-secobarbital. We show the non-stereo structure to represent the mixture.
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View more information in the IUPHAR Pharmacology Education Project: secobarbital

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 5
Hydrogen bond donors 2
Rotatable bonds 5
Topological polar surface area 75.27
Molecular weight 238.13
XLogP 2.28
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 CCCC(C1(CC=C)C(=O)NC(=O)NC1=O)C
Isomeric SMILES CCCC(C1(CC=C)C(=O)NC(=O)NC1=O)C
InChI InChI=1S/C12H18N2O3/c1-4-6-8(3)12(7-5-2)9(15)13-11(17)14-10(12)16/h5,8H,2,4,6-7H2,1,3H3,(H2,13,14,15,16,17)
InChI Key KQPKPCNLIDLUMF-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
Secobarbital is used short-term to treat insomnia, as a pre-operative sedative, or as an anaesthetic for short surgical, diagnostic, or therapeutic procedures.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Secobarbital is a positive allosteric modulator of GABAA channels, enhancing the inhibitory effects of GABA in the CNS. The drug binds to a barbituate allosteric site [1], which is distinct from the benzodiazepine allosteric site, and from the GABA binding site. Barbiturate modulation prolongs the duration of bursts of chloride channel opening [1] and this is responsible for the anxiolytic, anticonvulsant, amnesic, sedative, hypnotic, euphoriant, and muscle relaxant properties of the drug.
External links Click here for help
For extended ADME data see the following:

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