U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry ABSOLUTE
Molecular Formula C21H30N6O8.ClH
Molecular Weight 530.959
Optical Activity UNSPECIFIED
Defined Stereocenters 4 / 4
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of BALAPIRAVIR HYDROCHLORIDE

SMILES

Cl.CC(C)C(=O)OC[C@]1(O[C@H]([C@H](OC(=O)C(C)C)[C@@H]1OC(=O)C(C)C)N2C=CC(N)=NC2=O)N=[N+]=[N-]

InChI

InChIKey=RAJFQMDUVDHLII-PYZPAVLJSA-N
InChI=1S/C21H30N6O8.ClH/c1-10(2)17(28)32-9-21(25-26-23)15(34-19(30)12(5)6)14(33-18(29)11(3)4)16(35-21)27-8-7-13(22)24-20(27)31;/h7-8,10-12,14-16H,9H2,1-6H3,(H2,22,24,31);1H/t14-,15+,16-,21-;/m1./s1

HIDE SMILES / InChI

Molecular Formula C21H30N6O8
Molecular Weight 494.4983
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 4 / 4
E/Z Centers 1
Optical Activity UNSPECIFIED

Molecular Formula ClH
Molecular Weight 36.461
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

R1479 (4′-azidocytidine) is a specific inhibitor of hepatitis C virus (HCV) replication. 4′-azidocytidine triphosphate is an inhibitor of native HCV replicase and recombinant HCV polymerase (NS5B). Balapiravir (R1626) is the tri-isobutyrate ester prodrug of R1479 under clinical development to improve exposure of R1479 upon oral administration.

Approval Year

TargetsConditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Overview

Overview

CYP3A4CYP2C9CYP2D6hERG

OverviewOther

Other InhibitorOther SubstrateOther Inducer





Drug as perpetrator​

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
no
no
Drug as victim

Drug as victim

PubMed

PubMed

TitleDatePubMed
The novel nucleoside analog R1479 (4'-azidocytidine) is a potent inhibitor of NS5B-dependent RNA synthesis and hepatitis C virus replication in cell culture.
2006 Feb 17
Design, synthesis, and antiviral properties of 4'-substituted ribonucleosides as inhibitors of hepatitis C virus replication: the discovery of R1479.
2007 May 1
Robust antiviral activity of R1626, a novel nucleoside analog: a randomized, placebo-controlled study in patients with chronic hepatitis C.
2008 Aug
The hepatitis C virus replicon presents a higher barrier to resistance to nucleoside analogs than to nonnucleoside polymerase or protease inhibitors.
2008 May
R-1626, a specific oral NS5B polymerase inhibitor of hepatitis C virus.
2008 Oct
Synthesis of new acridone derivatives, inhibitors of NS3 helicase, which efficiently and specifically inhibit subgenomic HCV replication.
2010 Apr 22
2'-Deoxy-2'-spirocyclopropylcytidine revisited: a new and selective inhibitor of the hepatitis C virus NS5B polymerase.
2010 Nov 25
Balapiravir plus peginterferon alfa-2a (40KD)/ribavirin in a randomized trial of hepatitis C genotype 1 patients.
2012 Jan-Feb
Inhibition of hepatitis C virus replication by GS-6620, a potent C-nucleoside monophosphate prodrug.
2014
Activation of peripheral blood mononuclear cells by dengue virus infection depotentiates balapiravir.
2014 Feb
Patents

Sample Use Guides

The phase 2, double-blind international trial evaluated the optimal treatment regimen of balapiravir plus peginterferon alfa-2a (40KD)/ribavirin in hepatitis C genotype 1 patients. Treatment-naive genotype 1 patients were randomized to one of seven treatment groups in which they received balapiravir 500, 1,000, or 1,500 mg twice daily, peginterferon alfa-2a (40KD) 180 or 90 µg/week and ribavirin 1,000/1,200 mg/day or peginterferon alfa-2a (40KD)/ribavirin. The planned treatment duration with balapiravir was reduced from 24 to 12 weeks due to safety concerns.
Route of Administration: Oral
In Vitro Use Guide
Curator's Comment: Activity is given for R1479. Balapiravir (R-1626) is the tri-isobutyl ester prodrug of a nucleoside analogue inhibitor of the hepatitis C virus (HCV) RNA-dependent RNA polymerase (R1479).
R1479 (4'-azidocytidine) is a specific inhibitor of HCV replication in the HCV subgenomic replicon system (IC(50) = 1.28 microM). R1479 showed no effect on cell viability or proliferation of HCV replicon or Huh-7 cells at concentrations up to 2 mM.
Substance Class Chemical
Created
by admin
on Fri Dec 15 16:16:54 GMT 2023
Edited
by admin
on Fri Dec 15 16:16:54 GMT 2023
Record UNII
C860V13650
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
BALAPIRAVIR HYDROCHLORIDE
USAN  
USAN  
Official Name English
4-AMINO-1-(4-C-AZIDO-2',3',5'-TRI-O-(2-METHYLPROPANOYL)-.BETA.-D-RIBOFURANOSYL)PYRIMIDIN- 2(1H)-ONE MONOHYDROCHLORIDE
Common Name English
CYTIDINE, 4'-C-AZIDO-, 2',3',5'-TRIS(2-METHYLPROPANOATE), HYDROCHLORIDE (1:1)
Common Name English
RO-4588161-001
Code English
BALAPIRAVIR HYDROCHLORIDE [USAN]
Common Name English
RO4588161-001
Code English
BALAPIRAVIR HCL
Common Name English
Classification Tree Code System Code
NCI_THESAURUS C25995
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
NCI_THESAURUS C281
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
Code System Code Type Description
SMS_ID
300000044591
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
PRIMARY
FDA UNII
C860V13650
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
PRIMARY
PUBCHEM
16126873
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
PRIMARY
CAS
690270-65-6
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
PRIMARY
USAN
WW-124
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
PRIMARY
ChEMBL
CHEMBL550936
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
PRIMARY
DRUG BANK
DBSALT002171
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
PRIMARY
NCI_THESAURUS
C87440
Created by admin on Fri Dec 15 16:16:54 GMT 2023 , Edited by admin on Fri Dec 15 16:16:54 GMT 2023
PRIMARY
Related Record Type Details
PARENT -> SALT/SOLVATE
Related Record Type Details
ACTIVE MOIETY