omeprazole   Click here for help

GtoPdb Ligand ID: 4279

Synonyms: H 168/68 | Losec® | Prilosec®
Approved drug
omeprazole is an approved drug (FDA (1989))
Compound class: Synthetic organic
Comment: This approved drug omeprazole is a racemic mixture of the R and S stereoisomers. Omeprazole is a potassium-transporting ATPase inhibitor, commonly referred to as a proton pump inhibitor.
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View more information in the IUPHAR Pharmacology Education Project: omeprazole

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 3
Hydrogen bond donors 1
Rotatable bonds 5
Topological polar surface area 96.31
Molecular weight 345.11
XLogP 0.6
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 COc1ccc2c(c1)nc([nH]2)S(=O)Cc1ncc(c(c1C)OC)C
Isomeric SMILES COc1ccc2c(c1)nc([nH]2)S(=O)Cc1ncc(c(c1C)OC)C
InChI InChI=1S/C17H19N3O3S/c1-10-8-18-15(11(2)16(10)23-4)9-24(21)17-19-13-6-5-12(22-3)7-14(13)20-17/h5-8H,9H2,1-4H3,(H,19,20)
InChI Key SUBDBMMJDZJVOS-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 as an antacid in conditions such as gastroesophageal reflux disease and other causes of excessive stomach acid.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Omeprazole suppresses gastric acid secretion by specifically inhibiting the H+/K+ ATPase enzyme system (proton pump) at the secretory surface of the gastric parietal cell.
External links Click here for help
For extended ADME data see the following:

Electronic Medicines Compendium (eMC)
Drugs.com