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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2006-10-17 10:02:55 UTC
Update Date2020-02-26 21:25:41 UTC
HMDB IDHMDB0005033
Secondary Accession Numbers
  • HMDB05033
Metabolite Identification
Common NameValdecoxib
DescriptionValdecoxib, also known as bextra or kudeq, belongs to the class of organic compounds known as benzenesulfonamides. These are organic compounds containing a sulfonamide group that is S-linked to a benzene ring. A former Pfizer district sales manager was indicted and sentenced to home confinement for destroying documents regarding the illegal promotion of Bextra. Valdecoxib is a drug which is used for the treatment of osteoarthritis and dysmenorrhoea. Valdecoxib is an extremely weak basic (essentially neutral) compound (based on its pKa). In humans, valdecoxib is involved in valdecoxib action pathway. Valdecoxib has analytical methods for bioequivalence studies, metabolite determination, estimation of formulation, and an HPTLC method for simultaneous estimation in tablet dosage form. Pfizer first acknowledged cardiovascular risks associated with Bextra in October 2004. and was available by prescription in tablet form until 2005 when the FDA requested that Pfizer withdraw Bextra from the American market. In the United States, the Food and Drug Administration (FDA) approved valdecoxib for the treatment of osteoarthritis, adult rheumatoid arthritis, and primary dysmenorrhea. Six whistle-blowers were awarded more than $102 million for their role in the investigation.
Structure
Thumb
Synonyms
ValueSource
4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulfonamideChEBI
BextraChEBI
p-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulfonamideChEBI
ValdecoxibumChEBI
4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulphonamideGenerator
p-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulphonamideGenerator
COXHMDB
KudeqHMDB
ValdynHMDB
ValecoxibHMDB
Pfizer brand OF valdecoxibHMDB
Chemical FormulaC16H14N2O3S
Average Molecular Weight314.359
Monoisotopic Molecular Weight314.072513014
IUPAC Name4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)benzene-1-sulfonamide
Traditional Namevaldecoxib
CAS Registry Number181695-72-7
SMILES
CC1=C(C(=NO1)C1=CC=CC=C1)C1=CC=C(C=C1)S(N)(=O)=O
InChI Identifier
InChI=1S/C16H14N2O3S/c1-11-15(12-7-9-14(10-8-12)22(17,19)20)16(18-21-11)13-5-3-2-4-6-13/h2-10H,1H3,(H2,17,19,20)
InChI KeyLNPDTQAFDNKSHK-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as benzenesulfonamides. These are organic compounds containing a sulfonamide group that is S-linked to a benzene ring.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassBenzenesulfonamides
Direct ParentBenzenesulfonamides
Alternative Parents
Substituents
  • Benzenesulfonamide
  • Benzenesulfonyl group
  • Organosulfonic acid amide
  • Azole
  • Isoxazole
  • Organic sulfonic acid or derivatives
  • Organosulfonic acid or derivatives
  • Heteroaromatic compound
  • Aminosulfonyl compound
  • Sulfonyl
  • Oxacycle
  • Azacycle
  • Organoheterocyclic compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point160 - 162 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Membrane (predicted from logP)
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB00580
Phenol Explorer Compound IDNot Available
FooDB IDFDB023600
KNApSAcK IDNot Available
Chemspider ID106796
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkValdecoxib
METLIN IDNot Available
PubChem Compound119607
PDB IDCOX
ChEBI ID63634
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceRogers, Roland S.; Talley, John J.; Brown, David L.; Nagarajan, Srinivasan; Carter, Jeffery S.; Weier, Richard M.; Stealey, Michael A.; Collins, Paul W.; Seibert, Karen; et al. Substituted isoxazoles for the treatment of inflammation. PCT Int. Appl. (1996), 171 pp. CODEN: PIXXD2 WO 9625405 A1 19960822 CAN 125:247800 AN 1996:601794
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in peroxidase activity
Specific function:
Mediates the formation of prostaglandins from arachidonate. May have a role as a major mediator of inflammation and/or a role for prostanoid signaling in activity-dependent plasticity.
Gene Name:
PTGS2
Uniprot ID:
P35354
Molecular weight:
68995.625
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide.
Gene Name:
CYP3A4
Uniprot ID:
P08684
Molecular weight:
57255.585
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S-warfarin, diclofenac, phenytoin, tolbutamide and losartan.
Gene Name:
CYP2C9
Uniprot ID:
P11712
Molecular weight:
55627.365