Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Glycine | HCID 750 | — |
| Reactant | 5-Fluorouracil | HCID 3385 | — |
| Reactant | 2,3-Dihydrofuran | HCID 70934 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | Tegafur | HCID 5386 | — |
Reaction Steps
In 20 ml of dimethylformamide were dissolved 1.3 g of 5-fluorouracil and 0.75 g of glycin. 2.8 Grams of 2,3-dihydrofuran in several portions were added in 8 hours to the solution while heating it at 145° C. The mixture was then reacted for 5 hours at the same temperature. After completion of the reaction, the reaction liquid was treated in the same manner as described in Example 16. 0.9 g of 1-(2-tetrahydrofuryl)-5-fluorouracil was obtained and 1.0 g of 5-fluorouracil containing 0.75 g of glycin was recovered. The yield of the end product was 56% based on the consumed 5-fluorouracil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04256885 |
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| Source dataset | uspto-grants-1981_03 |
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| ORD ID | ord-57e2d231bfbd4bbb82d5a99863bf573c |
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| Source note | uspto-grants-1981_03 |
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