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Details

Stereochemistry ACHIRAL
Molecular Formula C6H10N4
Molecular Weight 138.1704
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PENTETRAZOL

SMILES

C1CCN2N=NN=C2CC1

InChI

InChIKey=CWRVKFFCRWGWCS-UHFFFAOYSA-N
InChI=1S/C6H10N4/c1-2-4-6-7-8-9-10(6)5-3-1/h1-5H2

HIDE SMILES / InChI

Molecular Formula C6H10N4
Molecular Weight 138.1704
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

Pentetrazol (pentylenetetrazole, BTD-001) is a pharmaceutical agent that displays activity as a central nervous system and respiratory stimulant. It is considered a non-competitive gamma-aminobutyric acid (GABA) antagonist. Pentetrazol (pentylenetetrazole) has been used experimentally to study seizure phenomenon and to identify pharmaceuticals that may control seizure susceptibility. GABA is thought to play a role in promoting sleep and its function is believed to be elevated in idiopathic hypersomnia. By blocking GABA’s function, pentetrazol (pentylenetetrazole, BTD-001) is expected to reduce excessive daytime sleepiness.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
0.98 mM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown

Doses

AEs

Overview

CYP3A4CYP2C9CYP2D6hERG

OverviewOther

Other InhibitorOther SubstrateOther Inducer

Drug as victim

PubMed

Sample Use Guides

In Vivo Use Guide
Unknown
Route of Administration: Unknown
In Vitro Use Guide
In rat alpha1/beta2/gamma2 gamma-aminobutyric acid (GABA) type A receptors, pentetrazol inhibited GABA-activated Cl(-) current in a concentration-dependent, voltage-independent manner, with an IC50 of 0.62 +/- 0.13 mM. The mechanism of inhibition appeared competitive with respect to GABA in both rat and human alpha1/beta2/gamma2 receptors. Varying subunit configuration (change or lack of alpha subunit isoform or lack of gamma2 subunit) had modest effects on pentetrazol-induced inhibition, as evidenced by comparable IC50 values (0.6-2.2 mM) in all receptor configurations tested. Using a one-site model for pentetrazol interaction with alpha1/beta2/gamma2 receptors, the association rate (k(+1)) was found to be 1.14 x 10^3 M(-1)s(-1) and the dissociation rate (k(-1)) was 0.476 s(-1), producing a functional Kd of 0.418 mM.
Substance Class Chemical
Record UNII
WM5Z385K7T
Record Status Validated (UNII)
Record Version