The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 1978
Filed:
Mar. 03, 1977
Applicant:
Inventors:
Toshio Nakamura, Ohmiya, JP;
Yasuo Hoshide, Tokyo, JP;
Yoshio Hashimoto, Gyoda, JP;
Kenichi Suzuki, Saitama, JP;
Yohji Yoshida, Kawaguchi, JP;
Assignee:
Nikken Chemicals Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544313 ;
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.