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:
Dec. 19, 1978
Filed:
Dec. 14, 1977
Applicant:
Inventors:
Shizumasa Kijima, Tokyo, JP;
Hiroshi Shionoya, Saitama, JP;
Kimio Hamamura, Kashiwa, JP;
Haruyoshi Arai, Kokubunji, JP;
Nozomu Koyanagi, Saitama, JP;
Assignee:
Eisai Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
424251 ; 544310 ;
Abstract
Novel 5-fluorouracil derivatives of the general formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represent hydrogen atom or methyl group, and R.sub.4 represents a straight or branched alkyl or alkenyl group, which has low toxicity and improved antitumor activity, and novel antitumor preparations containing the said 5-fluorouracil derivative.