methylergonovine   Click here for help

GtoPdb Ligand ID: 150

Synonyms: Methergine® | methylergobasin
Approved drug PDB Ligand
methylergonovine is an approved drug (FDA (1946))
Compound class: Synthetic organic
Comment: Methylergonovine is a synthetic analogue of the natural ergot alkaloid, ergometrine. It acts through interaction with multiple molecular targets, including adrenoceptors, dopamine receptors, and 5-HT receptors.
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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View interactive charts of activity data across species
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 4
Hydrogen bond donors 3
Rotatable bonds 5
Topological polar surface area 68.36
Molecular weight 339.19
XLogP 1.54
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 CCC(NC(=O)C1CN(C)C2C(=C1)c1cccc3c1c(C2)c[nH]3)CO
Isomeric SMILES CC[C@H](NC(=O)[C@H]1CN(C)[C@H]2C(=C1)c1cccc3c1c(C2)c[nH]3)CO
InChI InChI=1S/C20H25N3O2/c1-3-14(11-24)22-20(25)13-7-16-15-5-4-6-17-19(15)12(9-21-17)8-18(16)23(2)10-13/h4-7,9,13-14,18,21,24H,3,8,10-11H2,1-2H3,(H,22,25)/t13-,14+,18-/m1/s1
InChI Key UNBRKDKAWYKMIV-QWQRMKEZSA-N
No information available.
Summary of Clinical Use Click here for help
Used in the prevention of excessive bleeding after childbirth.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
This drug appears to have multiple molecular targets, including adrenoceptors, dopamine receptors, and 5-HT receptors, although the exact mechanism of action remains unclear. Through antagonism of the dopamine D1 receptor in the smooth muscle of the uterus methylergonovine increases the tone, rate and amplitude of contractions which leads to the third stage of labour being shortened and blood loss being reduced.