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Details

Stereochemistry ABSOLUTE
Molecular Formula C31H41N6O7.Na
Molecular Weight 632.683
Optical Activity UNSPECIFIED
Defined Stereocenters 5 / 5
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of BQ-123 SODIUM

SMILES

[Na+].CC(C)C[C@@H]1NC(=O)[C@H](NC(=O)[C@@H]2CCCN2C(=O)[C@@H](CC([O-])=O)NC(=O)[C@@H](CC3=CNC4=CC=CC=C34)NC1=O)C(C)C

InChI

InChIKey=FLIKEIGEOXCRRG-JKNHBXRPSA-M
InChI=1S/C31H42N6O7.Na/c1-16(2)12-21-27(40)33-22(13-18-15-32-20-9-6-5-8-19(18)20)28(41)35-23(14-25(38)39)31(44)37-11-7-10-24(37)29(42)36-26(17(3)4)30(43)34-21;/h5-6,8-9,15-17,21-24,26,32H,7,10-14H2,1-4H3,(H,33,40)(H,34,43)(H,35,41)(H,36,42)(H,38,39);/q;+1/p-1/t21-,22+,23+,24-,26+;/m0./s1

HIDE SMILES / InChI

Molecular Formula C31H41N6O7
Molecular Weight 609.6932
Charge -1
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 5 / 5
E/Z Centers 0
Optical Activity UNSPECIFIED

Molecular Formula Na
Molecular Weight 22.9898
Charge 1
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

BQ-123 is a selective endothelin receptor-1 antagonist; it is used as a biochemical tool in the study of endothelin receptor function. BQ-123 was suspected to contribute to the regulation of vascular tone humans. However, a study involving young normotensive subjects did not demonstrate any major role for BQ-123 regulation of vascular tone.

CNS Activity

Curator's Comment: Known to be CNS non-penetrant in rats. Human data not available

Originator

Curator's Comment: BQ-123 originally isolated from microbial sources by Banyu investigators

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Target ID: P25101|||Q16433
Gene ID: 1909.0
Gene Symbol: EDNRA
Target Organism: Homo sapiens (Human)
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
PubMed

PubMed

TitleDatePubMed
[Demonstration of a vasopressor role of endogenous endothelin after inhibition of nitric oxide synthesis in rats].
1995 Aug
ETA receptor-mediated constrictor responses to endothelin peptides in human blood vessels in vitro.
1995 May
Endothelin receptor-mediated Ca2+ mobilization and contraction in bovine oviductal arteries: comparison with noradrenaline and potassium.
1997 Oct
Endothelin-1 binding to endothelin receptors in the rat anterior pituitary gland: possible formation of an ETA-ETB receptor heterodimer.
2002 Apr
Actions of endothelin and corticotropin releasing factor in the guinea-pig ileum: no evidence for an interaction with capsaicin-sensitive neurons.
2003 Aug
Endothelin 1 versus endothelin 3 in the development of the slow force response to myocardial stretch.
2005 Apr
Endothelin-1 receptor antagonist BQ123 prevents pulmonary artery hypertension induced by low ambient temperature in broilers.
2005 Dec
Cyclo-oxygenase-2, endothelium and aortic reactivity during deoxycorticosterone acetate salt-induced hypertension.
2005 May
Functional characterization and expression of endothelin receptors in rat carotid artery: involvement of nitric oxide, a vasodilator prostanoid and the opening of K+ channels in ETB-induced relaxation.
2005 Nov
Modulation of the myocardial effects of selective ETB receptor stimulation and its implications for heart failure.
2005 Sep
Mechanisms of direct peritoneal resuscitation-mediated splanchnic hyperperfusion following hemorrhagic shock.
2007 Apr
Central endothelin: effects on vasopressin and the arterial baroreflex in doxorubicin heart failure rats.
2008 Jun
Selective ET(A) receptor blockade protects against cisplatin-induced acute renal failure in male rats.
2014 May 5
BQ-123 prevents LPS-induced preterm birth in mice via the induction of uterine and placental IL-10.
2015 Feb 1
Patents

Sample Use Guides

double-blind randomized study: 50 nmol/min for 60 min, or 300 nmol/min for 5 min followed by saline for 55 min
Route of Administration: Intra-arterial
In Vitro Use Guide
Unknown
Substance Class Chemical
Created
by admin
on Sat Dec 16 11:00:45 GMT 2023
Edited
by admin
on Sat Dec 16 11:00:45 GMT 2023
Record UNII
05427HSQ1I
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
BQ-123 SODIUM
Common Name English
CYCLO(D-.ALPHA.-ASPARTYL-L-PROLYL-D-VALYL-L-LEUCYL-D-TRYPTOPHYL), MONOSODIUM SALT
Systematic Name English
Code System Code Type Description
DRUG BANK
DBSALT002128
Created by admin on Sat Dec 16 11:00:45 GMT 2023 , Edited by admin on Sat Dec 16 11:00:45 GMT 2023
PRIMARY
PUBCHEM
53229988
Created by admin on Sat Dec 16 11:00:45 GMT 2023 , Edited by admin on Sat Dec 16 11:00:45 GMT 2023
PRIMARY
CAS
136655-57-7
Created by admin on Sat Dec 16 11:00:45 GMT 2023 , Edited by admin on Sat Dec 16 11:00:45 GMT 2023
PRIMARY
FDA UNII
05427HSQ1I
Created by admin on Sat Dec 16 11:00:45 GMT 2023 , Edited by admin on Sat Dec 16 11:00:45 GMT 2023
PRIMARY
Related Record Type Details
PARENT -> SALT/SOLVATE
Related Record Type Details
ACTIVE MOIETY