Process for preparing N.sub.1 -(2'-furanidyl)-5-fluorouracil
First Claim
1. A process for preparing N1 -(2'"'"'-furanidyl)-5-fluorouracil of the formula ##STR6## which comprises reacting a 2,4-bis(trialkylsilyl)-5-fluorouracil of the formula ##STR7## wherein R is a lower alkyl group, with 2,3-dihydrofuran in the presence of a catalyst selected from the group consisting of stannic chloride, aluminum chloride, titanium tetrachloride, silicon tetrachloride, antimony pentachloride, boron trifluoride, bromine, iodine, lithium iodide, sodium iodide, potassium iodide and mixtures thereof and a proton donor selected from the group consisting of water, an alcohol, an organic acid and mixtures thereof.
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Abstract
Process for preparing N1 -(2'"'"'-furanidyl)-5-fluorouracil having effective pharmacological activities such as anti-leukemia and anti-tumor activities comprising reacting 2,4-bis(trialkylsilyl)-5-fluorouracil with 2,3-dihydrofuran in the presence of a proton donor and a catalyst. Such process can be simply, easily conducted to give the desired product having a high purity in good yield.
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Citations
9 Claims
- 1. A process for preparing N1 -(2'"'"'-furanidyl)-5-fluorouracil of the formula ##STR6## which comprises reacting a 2,4-bis(trialkylsilyl)-5-fluorouracil of the formula ##STR7## wherein R is a lower alkyl group, with 2,3-dihydrofuran in the presence of a catalyst selected from the group consisting of stannic chloride, aluminum chloride, titanium tetrachloride, silicon tetrachloride, antimony pentachloride, boron trifluoride, bromine, iodine, lithium iodide, sodium iodide, potassium iodide and mixtures thereof and a proton donor selected from the group consisting of water, an alcohol, an organic acid and mixtures thereof.
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