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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1702777Generated: October 31, 2026

5-Fluorouracil → HCID 20525115, compound

https://huagongshe.com/reaction/1702777

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-FluorouracilHCID 3385—
Reactant4-Isocyanatobutan-2-oneHCID 21464887—
SolventEthyl AcetateHCID 8857—
SolventDimethylacetamideHCID 31374—
ProductHCID 20525115HCID 20525115—

Reaction Steps

To the above solution of 2-acetylethyl isocyanate was added a solution of 5-fluorouracil (2.60 g.) in N,N-dimethylacetamide (15 ml.) at 80° C. and stirred for further 5 hours at the same temperature. The resultant mixture was diluted with ethyl acetate (200 ml.), washed with water (each 30 ml., 3 times), dried over magnesium sulfate, treated with activated charcoal, filtered and evaporated in vacuo. The residue was recrystallized from ethyl acetate to give 1-[N-(2-acetylethyl)carbamoyl]-5-fluorouracil (439 mg.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04349552
Source datasetuspto-grants-1982_09
ORD IDord-ac14c62d94a1475ca929795337f64343
Source noteuspto-grants-1982_09