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:
May. 30, 1989
Filed:
Dec. 20, 1982
Applicant:
Inventors:
Isao Yamatsu, Saitama, JP;
Yuichi Inai, Tokyo, JP;
Shinya Abe, Tokyo, JP;
Takeshi Suzuki, Abiko, JP;
Yoshikazu Suzuki, Ichinomiya, JP;
Osamu Tagaya, Gifu, JP;
Kouichi Suzuki, Kakamigahara, JP;
Kouichi Abe, Tokyo, JP;
Kouji Yamada, Tokyo, JP;
Assignee:
Eisai Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
514549 ; 514560 ; 514627 ; 514675 ;
Abstract
An anti-cancer agent which comprises a polyprenvl compound having the formula (I): ##STR1## in which each of n and m is 0, 1 or 2, n+m is 0, 1 or 2, A is ##STR2## and B is ##STR3## in which R represents the hydroxyl group, a lower alkoxy group, or ##STR4## (wherein each of R.sub.1 and R.sub.2 is the hydrogen atom, a lower alkyl group or an aryl group)]; provided that R is a lower alkoxy or ##STR5## if n is 1, m is 0, A is ##STR6## and B is ##STR7##