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Details

Stereochemistry ABSOLUTE
Molecular Formula C34H51N5O7
Molecular Weight 641.798
Optical Activity UNSPECIFIED
Defined Stereocenters 5 / 5
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of BQ-788 FREE ACID

SMILES

CCCC[C@@H](NC(=O)[C@@H](CC1=CN(C(=O)OC)C2=C1C=CC=C2)NC(=O)[C@H](CC(C)(C)C)NC(=O)N3[C@@H](C)CCC[C@H]3C)C(O)=O

InChI

InChIKey=LPAHKJMGDSJDRG-DJYQTOCQSA-N
InChI=1S/C34H51N5O7/c1-8-9-16-25(31(42)43)35-29(40)26(18-23-20-38(33(45)46-7)28-17-11-10-15-24(23)28)36-30(41)27(19-34(4,5)6)37-32(44)39-21(2)13-12-14-22(39)3/h10-11,15,17,20-22,25-27H,8-9,12-14,16,18-19H2,1-7H3,(H,35,40)(H,36,41)(H,37,44)(H,42,43)/t21-,22+,25-,26-,27+/m1/s1

HIDE SMILES / InChI

Molecular Formula C34H51N5O7
Molecular Weight 641.798
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 5 / 5
E/Z Centers 0
Optical Activity UNSPECIFIED

BQ-788, a selective endothelin (ET) B-receptor antagonist, was developed by Banyu. This compound is widely used to demonstrate the role of ET-1 and ET(B) receptor subtypes in physiological and/or pathophysiological conditions. BQ-788 was studied against hypertension. However, this study was discontinued. Besides, was shown that BQ788 could protect against brain edema by inhibiting vascular endothelial growth factor-A-mediated decrease in claudin-5. The intralesional applications of BQ788 were well tolerated and showed signs of directly and indirectly reducing the viability of melanoma cells.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
1.2 nM [IC50]
PubMed

PubMed

TitleDatePubMed
Endothelin-1 binding to endothelin receptors in the rat anterior pituitary gland: possible formation of an ETA-ETB receptor heterodimer.
2002 Apr
Endothelin-1 and -3 diminish neuronal NE release through an NO mechanism in rat anterior hypothalamus.
2002 Sep
Actions of endothelin and corticotropin releasing factor in the guinea-pig ileum: no evidence for an interaction with capsaicin-sensitive neurons.
2003 Aug
Endothelin receptor blockade inhibits molecular effectors of Kaposi's sarcoma cell invasion and tumor growth in vivo.
2003 Aug
High glucose-induced, endothelin-dependent fibronectin synthesis is mediated via NF-kappa B and AP-1.
2003 Feb
Endothelin ET(A) but not ET(B) receptors mediate contraction of common bile duct.
2003 May 15
Modulatory effect of endothelin-1 and -3 on neuronal norepinephrine release in the rat posterior hypothalamus.
2004 Apr 15
Endothelin 1 and 3 enhance neuronal nitric oxide synthase activity through ETB receptors involving multiple signaling pathways in the rat anterior hypothalamus.
2004 Jul
Obligatory role for endogenous endothelin in mediating the hypertrophic effects of phenylephrine and angiotensin II in neonatal rat ventricular myocytes: evidence for two distinct mechanisms for endothelin regulation.
2004 Jul
Ventricular nonmyocytes inhibit doxorubicin-induced myocyte apoptosis: involvement of endogenous endothelin-1 as a paracrine factor.
2004 May
The endothelin/sarafotoxin-induced increase of the proliferation of undifferentiated and DMSO-differentiated GEM-81 goldfish erythrophoroma cells is mediated by ETB receptors.
2004 Oct
Endothelin-1-dependent up-regulation of leptin production in gastric mucosal injury by indomethacin.
2005
Effects of an endothelin B receptor agonist on secretory phospholipase A2-IIA-induced apoptosis in cortical neurons.
2005 Feb
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
Involvement of nitric oxide pathways in short term modulation of tyrosine hydroxylase activity by endothelins 1 and 3 in the rat anterior hypothalamus.
2005 Sep 2
Role of ET(A) and ET(B) endothelin receptors on endothelin-1-induced potentiation of nociceptive and thermal hyperalgesic responses evoked by capsaicin in rats.
2009 Jul 3
Antiviral effect of Bosentan and Valsartan during coxsackievirus B3 infection of human endothelial cells.
2010 Aug
Simvastatin stimulates production of the antiapoptotic protein Bcl-2 via endothelin-1 and NFATc3 in SH-SY5Y cells.
2010 Jun
Endothelins decrease the expression of aquaporins and plasma membrane water permeability in cultured rat astrocytes.
2011 Mar
Celecoxib offsets the negative renal influences of cyclosporine via modulation of the TGF-β1/IL-2/COX-2/endothelin ET(B) receptor cascade.
2014 Mar 1
Celecoxib, but not indomethacin, ameliorates the hypertensive and perivascular fibrotic actions of cyclosporine in rats: role of endothelin signaling.
2015 Apr 1
Patents

Patents

Sample Use Guides

Three patients received a single intralesional BQ788 application of 3 mg
Route of Administration: Other
Substance Class Chemical
Created
by admin
on Mon Mar 31 22:11:29 GMT 2025
Edited
by admin
on Mon Mar 31 22:11:29 GMT 2025
Record UNII
6MB0YNA8DJ
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
D-NORLEUCINE, N-((CIS-2,6-DIMETHYL-1-PIPERIDINYL)CARBONYL)-4-METHYL-L-LEUCYL-1-(METHOXYCARBONYL)-D-TRYPTOPHYL-
Preferred Name English
BQ-788 FREE ACID
Common Name English
Code System Code Type Description
PUBCHEM
5311032
Created by admin on Mon Mar 31 22:11:29 GMT 2025 , Edited by admin on Mon Mar 31 22:11:29 GMT 2025
PRIMARY
CAS
173326-37-9
Created by admin on Mon Mar 31 22:11:29 GMT 2025 , Edited by admin on Mon Mar 31 22:11:29 GMT 2025
PRIMARY
FDA UNII
6MB0YNA8DJ
Created by admin on Mon Mar 31 22:11:29 GMT 2025 , Edited by admin on Mon Mar 31 22:11:29 GMT 2025
PRIMARY
Related Record Type Details
TARGET -> INHIBITOR
LABELED -> NON-LABELED
SALT/SOLVATE -> PARENT
Related Record Type Details
ACTIVE MOIETY