methnaridine   Click here for help

GtoPdb Ligand ID: 11318

Antimalarial Ligand
Compound class: Synthetic organic
Comment: Methnaridine is a novel benzonaphthyridine antimalarial compound, identified from a structural optimization study of pyronaridine [1].

The Malaria tab on this ligand page provides additional curator comments of relevance to the Guide to MALARIA PHARMACOLOGY.
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 CDK toolkit. 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 7
Topological polar surface area 73.75
Molecular weight 465.19
XLogP 3.89
No. Lipinski's rules broken 0
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.

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Canonical SMILES COc1ccc2c(n1)c(Nc1cc(CN(C)C)c(c(c1)CN(C)C)O)c1c(n2)cc(cc1)Cl
Isomeric SMILES COc1ccc2c(n1)c(Nc1cc(CN(C)C)c(c(c1)CN(C)C)O)c1c(n2)cc(cc1)Cl
InChI InChI=1S/C25H28ClN5O2/c1-30(2)13-15-10-18(11-16(25(15)32)14-31(3)4)27-23-19-7-6-17(26)12-21(19)28-20-8-9-22(33-5)29-24(20)23/h6-12,32H,13-14H2,1-5H3,(H,27,28)
InChI Key CYNAGHGKNNKEIO-UHFFFAOYSA-N
Guide to Malaria Pharmacology Comments
In addition to rapid and potent activity against the asexual blood stages of the malaria parasite, methnaridine has good oral bioavailability, a long half-life and a low clearance rate [1]. Further preclinical studies, to evaluate the use of methnaridine as part of an artemisinin-combination therapy (ACT), are being carried out.

Potential Target/Mechanism Of Action: As the precise MOA of methnaridine is not yet known, we do not have a molecular target for this compound.