62987-05-7Relevant articles and documents
Synthesis of Tegafur by the Alkylation of 5-Fluorouracil under the Lewis Acid and Metal Salt-Free Conditions
Zasada, Aleksandra,Mironiuk-Puchalska, Ewa,Koszytkowska-Stawińska, Mariola
, p. 885 - 889 (2017/06/23)
A novel protocol for preparation of tegafur (a prodrug of 5-fluorouracil) is reported. The process involves the 1,8-diazabicycloundec-7-ene-mediated alkylation of 5-fluorouracil with 2-acetoxytetrahydrofuran at 90 °C, followed by treatment of the prepurified mixture of the alkylation products with aqueous ethanol at 70 °C. The yield of the two-step process is 72%.
5-Fluorouracil derivatives. X. Synthesis and antitumor activities of α-alkoxyalkyl-5-fluorouracils
Ozaki,Watanabe,Hoshiko,Nagase,Ogasawara,Furukawa,Uemura,Ishikawa,Mori
, p. 150 - 157 (2007/10/02)
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Process for producing 5-fluorouracil derivative with a calcium chloride catalyst
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, (2008/06/13)
5-Fluorouracil derivative having the formula STR1 wherein R represents hydrogen atom or 2-tetrahydrofuryl group is produced by reacting more than equi-mole of 2,3-dihydrofuran with 5-fluorouracil in a polar aprotic solvent with a catalytically effective amount of a catalyst selected from the group consisting of metal halides, non-metal halides, tertiary amine salt of inorganic acids and organic acids in neutral or basic condition at 50° to 150° C under pressure.