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

Details

Stereochemistry ABSOLUTE
Molecular Formula C13H21N5O6.ClH
Molecular Weight 379.797
Optical Activity UNSPECIFIED
Defined Stereocenters 5 / 5
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of LEVOVIRIN VALINATE HYDROCHLORIDE

SMILES

Cl.CC(C)[C@H](N)C(=O)OC[C@@H]1O[C@@H]([C@@H](O)[C@H]1O)N2C=NC(=N2)C(N)=O

InChI

InChIKey=BZAMJGAXDMZZKX-JSNLFJDGSA-N
InChI=1S/C13H21N5O6.ClH/c1-5(2)7(14)13(22)23-3-6-8(19)9(20)12(24-6)18-4-16-11(17-18)10(15)21;/h4-9,12,19-20H,3,14H2,1-2H3,(H2,15,21);1H/t6-,7-,8-,9-,12-;/m0./s1

HIDE SMILES / InChI

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

Molecular Formula C13H21N5O6
Molecular Weight 343.3357
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 5 / 5
E/Z Centers 0
Optical Activity UNSPECIFIED

Levovirin is a guanosine nucleoside analog and the L-enantiomer of ribavirin. It is an investigational drug for the treatment of hepatitis C virus-mediated diseases. Levovirin has a similar immunomodulatory potency to ribavirin in vitro without accumulating in red blood cells or causing hemolytic anemia, a known side effect of ribavirin. Levovirin has been shown to stimulate host immune responses (enhanced Th1 and reduced Th2 cytokine expression). Significantly improved oral absorption of levovirin was achieved following administration of a valine ester prodrug of levovirin R1518. Levovirin was found more potent to inhibit Tick-borne encephalitis virus (TBEV) on the basis of robust binding affinity between protein-drug interactions. This finding may help to understand the nature of helicase and development of specific anti-TBEV therapies.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Target ID: Q01299
Gene ID: NA
Gene Symbol: NA
Target Organism: Tick-borne encephalitis virus (strain Hypr) (TBEV)
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Approved Use

Unknown
Primary
Unknown

Approved Use

Unknown
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
0.66 μg/mL
3000 mg single, oral
dose: 3000 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FED
19.62 μg/mL
1500 mg 2 times / day steady-state, oral
dose: 1500 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
0.89 μg/mL
3000 mg single, oral
dose: 3000 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
28.22 μg/mL
1500 mg 2 times / day steady-state, oral
dose: 1500 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE
food status: UNKNOWN
35.13 μg/mL
3000 mg 2 times / day steady-state, oral
dose: 3000 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
10.02 μg/mL
750 mg 2 times / day steady-state, oral
dose: 750 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
13.65 μg/mL
750 mg 2 times / day steady-state, oral
dose: 750 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE
food status: UNKNOWN
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
1.68 μg × h/mL
3000 mg single, oral
dose: 3000 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FED
193.1 μg × h/mL
1500 mg 2 times / day steady-state, oral
dose: 1500 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
2.09 μg × h/mL
3000 mg single, oral
dose: 3000 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
275.7 μg × h/mL
1500 mg 2 times / day steady-state, oral
dose: 1500 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE
food status: UNKNOWN
371.7 μg × h/mL
3000 mg 2 times / day steady-state, oral
dose: 3000 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
94.5 μg × h/mL
750 mg 2 times / day steady-state, oral
dose: 750 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
98 μg × h/mL
750 mg 2 times / day steady-state, oral
dose: 750 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE
food status: UNKNOWN
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
0.8 h
3000 mg single, oral
dose: 3000 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FED
9.9 h
1500 mg 2 times / day steady-state, oral
dose: 1500 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
0.65 h
3000 mg single, oral
dose: 3000 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
21.1 h
1500 mg 2 times / day steady-state, oral
dose: 1500 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE
food status: UNKNOWN
8.5 h
3000 mg 2 times / day steady-state, oral
dose: 3000 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
7.7 h
750 mg 2 times / day steady-state, oral
dose: 750 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
15.1 h
750 mg 2 times / day steady-state, oral
dose: 750 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOVIRIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE
food status: UNKNOWN
PubMed

PubMed

TitleDatePubMed
The ribavirin analog ICN 17261 demonstrates reduced toxicity and antiviral effects with retention of both immunomodulatory activity and reduction of hepatitis-induced serum alanine aminotransferase levels.
2000 May
Inhibitors of the IMPDH enzyme as potential anti-bovine viral diarrhoea virus agents.
2002 Nov
Past, present, and future hepatitis C treatments.
2004
Single- and multiple-dose pharmacokinetics of levovirin valinate hydrochloride (R1518) in healthy volunteers.
2005 May
Transport of levovirin prodrugs in the human intestinal Caco-2 cell line.
2006 Jun
Hepatitis-C patients have reduced growth hormone (GH) secretion which improves during long-term therapy with pegylated interferon-alpha.
2007 Dec
Mutagenic effect of ribavirin on hepatitis C nonstructural 5B quasispecies in vitro and during antiviral therapy.
2007 Mar
Structural modeling of the NS 3 helicase of Tick-borne encephalitis virus and their virtual screening of potent drugs using molecular docking.
2009 Sep
Effect of ribavirin on the frequency of RNase L cleavage sites within the hepatitis C viral genome.
2010 Mar
Ribavirin induced hemolysis: a novel mechanism of action against chronic hepatitis C virus infection.
2014 Nov 21
Prediction of Plasma Concentration-time Profiles of Drugs in Humans from Animals Following Oral Administration: An Allometric Approach.
2016
Patents

Sample Use Guides

Rat: 180 mg/kg of body weight for 4 weeks
Route of Administration: Oral
Levovirin has a very low transport rate through Caco-2 cell monolayers (1.2x10(-7) cm/s). For bi-directional transport studies from basolateral to apical side, 1.25 mL of 20 uM drug solution in pH 7.4 buffer was placed in the basolateral chamber, and 0.5 mL pH 6.5 buffer was put into the apical chamber. There are no significant differences between apical (A) to basolateral (B) and B to A permeability values for levovirin.
Substance Class Chemical
Created
by admin
on Sat Dec 16 08:58:33 GMT 2023
Edited
by admin
on Sat Dec 16 08:58:33 GMT 2023
Record UNII
V72F3F078G
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
LEVOVIRIN VALINATE HYDROCHLORIDE
Common Name English
R-1518
Code English
L-VALINE, 5'-ESTER WITH 1-BETA-L-RIBOFURANOSYL-1H-1,2,4-TRIAZOLE-3-CARBOXAMIDE, HYDROCHLORIDE (1:1)
Systematic Name English
LEVOVIRIN VALINATE HCL
Common Name English
Code System Code Type Description
PUBCHEM
10249157
Created by admin on Sat Dec 16 08:58:33 GMT 2023 , Edited by admin on Sat Dec 16 08:58:33 GMT 2023
PRIMARY
FDA UNII
V72F3F078G
Created by admin on Sat Dec 16 08:58:33 GMT 2023 , Edited by admin on Sat Dec 16 08:58:33 GMT 2023
PRIMARY
CAS
705930-02-5
Created by admin on Sat Dec 16 08:58:33 GMT 2023 , Edited by admin on Sat Dec 16 08:58:33 GMT 2023
PRIMARY
Related Record Type Details
ACTIVE MOIETY