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Details

Stereochemistry ACHIRAL
Molecular Formula C23H26N2O
Molecular Weight 346.4653
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of ROXINDOLE

SMILES

OC1=CC2=C(NC=C2CCCCN3CCC(=CC3)C4=CC=CC=C4)C=C1

InChI

InChIKey=HGEYJZMMUGWEOT-UHFFFAOYSA-N
InChI=1S/C23H26N2O/c26-21-9-10-23-22(16-21)20(17-24-23)8-4-5-13-25-14-11-19(12-15-25)18-6-2-1-3-7-18/h1-3,6-7,9-11,16-17,24,26H,4-5,8,12-15H2

HIDE SMILES / InChI

Molecular Formula C23H26N2O
Molecular Weight 346.4653
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Description

Roxindole (EMD-49,980) is a dopaminergic and serotonergic drug which was originally developed for the treatment of schizophrenia. Roxindole has also been investigated as a therapy for the major depressive disorder, Parkinson's disease, and prolactinoma. Roxindole is dopamine autoreceptor-selective agonistic drug with high affinity to D2-like receptors and with much lower affinities to D1-like, % and ol2, muscarinic and 5HT 2 receptors. Additionally, Roxindole exerts 5HT uptake inhibition and 5HT1A agonistic effects. The bioavailability of Roxindole has been estimated at 5% due to a high first-pass metabolization. On the other hand, in 14C distribution studies, Roxindole has crossed the blood-brain barrier readily and the brain concentrations at all intervals have been much higher than corresponding plasma levels. In clinical trials, Roxindole ‘s antipsychotic efficacy was only modest but it was unexpectedly found to produce potent and rapid antidepressant and anxiolytic effects. However, the clinical development of Roxindole was discontinued.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
0.8 nM [IC50]
0.37 nM [EC50]
0.4 nM [Ki]
24.0 nM [Ki]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown
Primary
Unknown

Doses

Overview

OverviewOther

Other InhibitorOther SubstrateOther Inducer




Drug as perpetrator​

Drug as victim

Tox targets

PubMed

Patents

Sample Use Guides

In Vivo Use Guide
Roxindole was administered at increasing daily doses from 0.3 to 30 mg for 28 days.
Route of Administration: Oral
In Vitro Use Guide
Roxindole activity was evaluated in [35S]GTPγS binding assay. Membranes of CHO cells stably expressing recombinant human 5-HT1A receptor were treated with [35S]GTPγS (0.1 nM) in assay buffer (HEPES (20 mM), pH 7.4, NaCl (100 mM), GDP (3 µM), MgCl2 (3 mM)) for 20 min at 22 °C. Efficacy is expressed as the increase in [35S]GTPγS binding observed with the agonist relative to that induced by a maximally effective concentration (10 µM) 5HT.
Substance Class Chemical
Record UNII
43227SMS0O
Record Status Validated (UNII)
Record Version