tegafur   Click here for help

GtoPdb Ligand ID: 10513

Synonyms: Florafur® | FT-207 | FT207 | Ftorafur®
Approved drug
tegafur is an approved drug (EMA (2011))
Compound class: Synthetic organic
Comment: Like capecitabine and floxuridine, tegafur is a prodrug of the chemotherapeutic agent 5-fluorouracil. It is orally active. The INN specifies tegafur as a racemic mixture of enantiomers. We show the molecule without specified stereochemistry to represent the mixture.
2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the CDK toolkit. All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 1
Hydrogen bond donors 1
Rotatable bonds 1
Topological polar surface area 64.09
Molecular weight 200.06
XLogP 0.61
No. Lipinski's rules broken 0
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

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Canonical SMILES O=c1[nH]c(=O)n(cc1F)C1CCCO1
Isomeric SMILES O=c1[nH]c(=O)n(cc1F)C1CCCO1
InChI InChI=1S/C8H9FN2O3/c9-5-4-11(6-2-1-3-14-6)8(13)10-7(5)12/h4,6H,1-3H2,(H,10,12,13)
InChI Key WFWLQNSHRPWKFK-UHFFFAOYSA-N
Bioactivity Comments
We have been unable to find publicly available bioactivity data for this drug at a defined molecular target, and have therefore not tagged a primary drug target. Tegafur inhibits growth of drug-sensitive HT-29 human colon cancer cells with an IC50 of 201 μM [1]. In this same study it inhibited growth of 4T1 breast carcinoma lung metastases and growth of HT-29 tumours in a mouse xenograft
Enzymes Catalysing Reactions with this Compound as a Substrate or Product
Enzyme EC number Reaction Reference
CYP2A6
Targets where the ligand is described in the comment field
Target Comment
dihydropyrimidine dehydrogenase Dihydropyrimidine dehydrogenase is required for the first and rate-limiting step of pyrimidine catabolism. In addition to degrading pyrimidines, it also breaks down pyrimidine-based 5-fluorouracil, the anticancer cytostatic agent that is produced from chemotherapeutic prodrugs including capecitabine and tegafur.