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:
Jun. 01, 1993
Filed:
Jan. 28, 1991
Applicant:
Inventors:
Kouzou Toyota, Kawasaki, JP;
Hisashi Shinkai, Tokyo, JP;
Hirozumi Eto, Kawasaki, JP;
Akira Kamimura, Kawasaki, JP;
Chikahiko Eguchi, Kawasaki, JP;
Koji Ohsumi, Kawasaki, JP;
Takashi Tsuruo, Tokyo, JP;
Assignees:
Ajinomoto Co., Inc., Tokyo, JP;
Japanese Foundation for Cancer Research, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; A61K / ;
U.S. Cl.
CPC ...
546321 ; 546286 ;
Abstract
Agents against drug-resistant tumor cells comprising a 1,4-dihydropyridine derivative represented by the following formula (I): ##STR1## wherein R.sup.1 is an aryl group which may be substituted;