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Primary Examiner: Coughlan, Jr., Paul M.
Assistant Examiner:
Attorney: Oblon, Fisher, Spivak, McClelland & Maier

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Title: Process for producing 5-fluorouracil derivative with a calcium chloride catalyst

Abstract: 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.degree. to 150.degree. C under pressure.

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Inventors: Nakamura, Toshio (Ohmiya, JP)
Hoshide, Yasuo (Tokyo, JP)
Hashimoto, Yoshio (Gyoda, JP)
Suzuki, Kenichi (Saitama, JP)
Yoshida, Yohji (Kawaguchi, JP)

Application Number: 774050
Filing Date: 1977-03-03
Publication_date: 1978-10-17
Assignee: Nikken Chemicals Co., Ltd. (Tokyo, JP)
Primary Class(es): 544/313
Other Classes:
US Patent Ref:

4039546

Aug, 1977

Giller et al.

260/260.

Other Refs: Other References: Ozaki et al., Chem. Abstracts, vol. 85, (1976), 192753x.
Brossmer et al., Chem. Abstracts, vol. 78, (1973), 58343r.