droxidopa   Click here for help

GtoPdb Ligand ID: 7391

Synonyms: L-DOPS | Northera® | SM-5688
Approved drug
droxidopa is an approved drug (FDA (2014))
Compound class: Synthetic organic
Comment: As droxidopa is a prodrug for noradrenaline, its effects will be through noradrenaline activation of adrenoceptors. The cellular effect is dependent upon adrenoceptor subtype expression on target cells.
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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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Click here for structure editor
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 5
Rotatable bonds 3
Topological polar surface area 124.01
Molecular weight 213.06
XLogP -2.79
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 OC(=O)C(C(c1ccc(c(c1)O)O)O)N
Isomeric SMILES OC(=O)[C@H]([C@@H](c1ccc(c(c1)O)O)O)N
InChI InChI=1S/C9H11NO5/c10-7(9(14)15)8(13)4-1-2-5(11)6(12)3-4/h1-3,7-8,11-13H,10H2,(H,14,15)/t7-,8+/m0/s1
InChI Key QXWYKJLNLSIPIN-JGVFFNPUSA-N
No information available.
Summary of Clinical Use Click here for help
Approved to treat neurogenic orthostatic hypotension (NOH), a condition characterised by a chronic and debilitating drop in blood pressure when rising to a standing position. NOH may be associated with other conditions including multiple system atrophy (MSA), familial amyloid polyneuropathy (FAP), and Parkinson's disease (PD).
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Droxidopa is a synthetic amino acid precursor of the sympathetic neurotransmitter noradrenaline (norepinephrine) [2]. Noradrenaline is a potent vasoconstrictor acting in the sympathetic nervous system to regulate cardiovascular activity. The enzyme aromatic L-amino acid decarboxylase (aka dopa decarboxylase, DDC; P20711) is responsible for decarboxylation of the prodrug. Drug treatment results in increased blood pressure and improved orthostatic tolerance.