tetrahydroharmine   Click here for help

GtoPdb Ligand ID: 13141

Compound class: Natural product or derivative
Comment: Tetrahydroharmine is a plant-derived β-carboline alkaloid that is a component of the psychoactive drink Ayahuasca, that is traditionally brewed by indigenous cultures in the Amazon. It is one of the harmala alkaloids produced by plants such as Banisteriopsis caapi and Peganum harmala. Pharmacologically tetrahydroharmine acts to prevent the breakdown of Ayahuasca's principal hallucinogenic substance dimethyltryptamine (DMT) by reversibly inhibiting monoamine oxidase A (MAO-A) [1].
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 3
Hydrogen bond donors 2
Rotatable bonds 1
Topological polar surface area 33.29
Molecular weight 216.28
XLogP 1.3
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 CC1C2=C(CCN1)C3=C(C=C(C=C3)OC)N2
Isomeric SMILES CC1C2=C(CCN1)C3=C(N2)C=C(C=C3)OC
InChI InChI=1S/C13H16N2O/c1-8-13-11(5-6-14-8)10-4-3-9(16-2)7-12(10)15-13/h3-4,7-8,14-15H,5-6H2,1-2H3
InChI Key ZXLDQJLIBNPEFJ-UHFFFAOYSA-N
Bioactivity Comments
There is some evidence to suggest that tetrahydroharmine can behave as a serotonin reuptake inhibitor [2-3].