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Eniluracil

HCID 43157
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
59989-18-3
Standard SMILES
C#Cc1c[nH]c(=O)[nH]c1=O
InChIKey
JOZGNYDSEBIJDH-UHFFFAOYSA-N
Molecular formula
C6H4N2O2
Average molar mass
136.11 g/mol
Monoisotopic mass
136.02727738

Overview

Eniluracil is a pyrimidone.

Names & identifiers

Preferred name
Eniluracil
IUPAC
5-ethynyl-1H-pyrimidine-2,4-dione
English name
2,4(1H,3H)-Pyrimidinedione, 5-ethynyl- (9CI)
Molecular formula
C6H4N2O2
Molecular weight
136.11

Names & synonyms

Eniluracil59989-18-35-ETHYNYLURACIL776C85ethynyluracilEniluracilo5-ethynyl-1,2,3,4-tetrahydropyrimidine-2,4-dione2E2W0W5XIU2,4(1H,3H)-Pyrimidinedione, 5-ethynyl-DTXSID10208696776-C-85NSC687296
Show more names
GW-776GW776C85PCS-6422ADH-300004NSC 687296BW-776-C855-Ethynyluracil>13C,15N2]-Eniluracil
5-Ethynyl-2,4(1H,3H)-pyrimidinedioneeniluracilum5-Fluorouracil EnhancerRefChem:590847DTXCID60131187PCS6422GW776PCS 6422

Database identifiers

CAS
59989-18-3
PubChem CID
43157
DTXSID
DTXSID10208696
ChEMBL
CHEMBL355200
ChEBI
CHEBI:177783
UNII
2E2W0W5XIU
Nikkaji
J574.717A

Properties

Computed structural properties

XLogP
-0.7
Topological polar surface area
58.2 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
2
Rotatable bonds
1
Heavy atoms
10
Formal charge
0
Complexity
269

Experimental & physicochemical properties

DrugsPharmaceuticals -> Listed in ZINC15

Physicochemical properties

Melting point
320 ° · 320° (dec)
Density
1.527 · 1.527
storage temp.
2 · under inert gas (nitrogen or Argon) at 2-8°C
solubility
Soluble in DMSO
form
solid
pka
7.44 · 7.44±0.10(Predicted)
color
Yellow
λmax
284 nm · 284nm(MeOH)(lit.)
Merck
14 · 14,3584
Stability
1 year · Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months.
FDA UNII
2 E2W0W5XIU · 2E2W0W5XIU
Symbol(GHS)
7 · GHS07
Signal word
Warning

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

Safety data

hs_code
2933.59.9500
Signal word
Warning
Symbol(GHS)
GHS07
Hazard statements
H302-H315-H319-H335
Precautionary statements
P261-P305+P351+P338

Chemistry & industry

Pharmacology

Pharmacodynamics · 1 item

Eniluracil is an orally active dihydropyrimidine dehydrogenase (DPD) inhibitor, designed to enhance activity of chemotaxic agents. It is under investigation by Adherex, under license from GlaxoSmithKline, for the treatment of cancer in combination with 5-fluorouracil (5-FU).

Mechanism of Action · 1 item

Normally, 5-FU is rapidly broken down in the body by an enzyme known as dihydropyrimidine dehydrogenase (DPD). Eniluracil irreversibly inhibits DPD, thereby substantially slowing the breakdown of 5-FU and prolonging exposure of the tumor cells to the drug.

MeSH Pharmacological ClassificationCompounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction.
Applications · 2 items

DescriptionEniluracil (59989-18-3) is an irreversible dihydropyrimidine dehydrogenase (DPD) inhibitor.1-3 DPD is involved in the degradation of pyrimidine-based chemotherapeutic drugs such as 5-fluorouracil (5-FU). Eniluracil has been used along with 5-FU to prolong circulating concentrations of the drug.

UsesPotent inactivator of Dihydropyrimidine dehydrogenase (DPD).

Additional notes

DefinitionChEBI: Eniluracil is a pyrimidone.

Related reactions

12 records
New reaction record
HRID 263404 reaction equation
HRID 263404As productuspto-grants-1997_07
HRID 324955 reaction equation
HRID 324955As productuspto-grants-2001_04
HRID 378820 reaction equation
HRID 378820As productuspto-grants-2001_10
HRID 398800 reaction equation
HRID 398800As productuspto-grants-1998_10
HRID 566944 reaction equation
HRID 566944As productuspto-grants-2001_01
HRID 645342 reaction equation
HRID 645342As productuspto-grants-2010_04
HRID 645343 reaction equation
HRID 645343As productuspto-grants-2010_04
HRID 959924 reaction equation
HRID 959924As productValidation data from https://doi.org/10.1039/C8SC04228D
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Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
New noteNew reactionRequest quotes
Hazard statements
302 · H302-H315-H319-H335
Precautionary statements
261 · P261-P305+P351+P338
HS Code
2933.59 · 2933.59.9500