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Details

Stereochemistry ABSOLUTE
Molecular Formula C9H11FN2O5
Molecular Weight 246.1924
Optical Activity UNSPECIFIED
Defined Stereocenters 4 / 4
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of 1-(2-DEOXY-2-FLUORO-.BETA.-D-ARABINOFURANOSYL)URACIL

SMILES

OC[C@H]1O[C@H]([C@@H](F)[C@@H]1O)N2C=CC(=O)NC2=O

InChI

InChIKey=UIYWFOZZIZEEKJ-PXBUCIJWSA-N
InChI=1S/C9H11FN2O5/c10-6-7(15)4(3-13)17-8(6)12-2-1-5(14)11-9(12)16/h1-2,4,6-8,13,15H,3H2,(H,11,14,16)/t4-,6+,7-,8-/m1/s1

HIDE SMILES / InChI

Molecular Formula C9H11FN2O5
Molecular Weight 246.1924
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 4 / 4
E/Z Centers 0
Optical Activity UNSPECIFIED

1-(2-DEOXY-2-FLUORO-β-D-ARABINOFURANOSYL)URACIL (FAU) is a thymidine analog. In several cancer cell lines, FAU was phosphorylated intracellularly to its monophosphate, 1-(2-deoxy-2-fluoro--Darabinofuranosyl) uracil monophosphate (FAUMP), by thymidine kinase and methylated in the 5-position by thymidylate synthase to form the product, 1-(2-deoxy-2-fluoro- -D-arabinofuranosyl) 5-methyluracil monophosphate (FMAUMP). FAU strongly inhibits the growth of tumor cells with high thymidylate synthase activity. FAU had been in phase I clinical trial for the treatment of advanced solid tumors.

CNS Activity

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

Approval Year

TargetsConditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown

Approved Use

Unknown
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
2.1 ng/mL
50 mg/m² single, intravenous
dose: 50 mg/m²
route of administration: Intravenous
experiment type: SINGLE
co-administered:
FMAU plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
1479 ng/mL
50 mg/m² single, intravenous
dose: 50 mg/m²
route of administration: Intravenous
experiment type: SINGLE
co-administered:
1-(2-DEOXY-2-FLUORO-.BETA.-D-ARABINOFURANOSYL)URACIL plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
1152 ng/mL
50 mg/m² 1 times / week multiple, intravenous
dose: 50 mg/m²
route of administration: Intravenous
experiment type: MULTIPLE
co-administered:
1-(2-DEOXY-2-FLUORO-.BETA.-D-ARABINOFURANOSYL)URACIL plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
4.1 ng/mL
50 mg/m² 1 times / week multiple, intravenous
dose: 50 mg/m²
route of administration: Intravenous
experiment type: MULTIPLE
co-administered:
FMAU plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
Sourcing

Sourcing

Vendor/AggregatorIDURL
PubMed

PubMed

TitleDatePubMed
Distribution of 1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl) uracil in mice bearing colorectal cancer xenografts: rationale for therapeutic use and as a positron emission tomography probe for thymidylate synthase.
2004-10-01
Imaging [18F]FAU [1-(2'-deoxy-2'-fluoro-beta-D-arabinofuranosyl) uracil] in dogs.
2003-01
Radiolabeled 2'-fluorodeoxyuracil-beta-D-arabinofuranoside (FAU) and 2'-fluoro-5-methyldeoxyuracil-beta -D-arabinofuranoside (FMAU) as tumor-imaging agents in mice.
2002-05
Fialuridine and its metabolites inhibit DNA polymerase gamma at sites of multiple adjacent analog incorporation, decrease mtDNA abundance, and cause mitochondrial structural defects in cultured hepatoblasts.
1996-04-16
Patents

Sample Use Guides

Mice: In 25% ethanol 5 ul/g (0.74 mg/kg (0.16 uCi/g))
Route of Administration: Intravenous
Coincubation of [3H]-FAU (43 nM/l) in vitro with 50 nmol/L FdUrd decreased FAU incorporation into DNA by 70% in HT29 and 84% in LS174T.
Substance Class Chemical
Created
by admin
on Mon Mar 31 18:45:25 GMT 2025
Edited
by admin
on Mon Mar 31 18:45:25 GMT 2025
Record UNII
K7386OMP29
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
2'-F-ARA-DEOXYURIDINE
Preferred Name English
1-(2-DEOXY-2-FLUORO-.BETA.-D-ARABINOFURANOSYL)URACIL
Common Name English
2,4(1H,3H)-PYRIMIDINEDIONE, 1-(2-DEOXY-2-FLUORO-.BETA.-D-ARABINOFURANOSYL)-
Common Name English
2'-FLUORO-ARA-DEOXYURIDINE
Common Name English
FAU
Common Name English
Classification Tree Code System Code
NCI_THESAURUS C1557
Created by admin on Mon Mar 31 18:45:25 GMT 2025 , Edited by admin on Mon Mar 31 18:45:25 GMT 2025
Code System Code Type Description
PUBCHEM
3007908
Created by admin on Mon Mar 31 18:45:25 GMT 2025 , Edited by admin on Mon Mar 31 18:45:25 GMT 2025
PRIMARY
FDA UNII
K7386OMP29
Created by admin on Mon Mar 31 18:45:25 GMT 2025 , Edited by admin on Mon Mar 31 18:45:25 GMT 2025
PRIMARY
NCI_THESAURUS
C80036
Created by admin on Mon Mar 31 18:45:25 GMT 2025 , Edited by admin on Mon Mar 31 18:45:25 GMT 2025
PRIMARY
CAS
69123-94-0
Created by admin on Mon Mar 31 18:45:25 GMT 2025 , Edited by admin on Mon Mar 31 18:45:25 GMT 2025
PRIMARY
NSC
678515
Created by admin on Mon Mar 31 18:45:25 GMT 2025 , Edited by admin on Mon Mar 31 18:45:25 GMT 2025
PRIMARY
EPA CompTox
DTXSID20219192
Created by admin on Mon Mar 31 18:45:25 GMT 2025 , Edited by admin on Mon Mar 31 18:45:25 GMT 2025
PRIMARY