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. 03, 1991
Filed:
Jun. 29, 1990
Applicant:
Inventors:
Yutaka Kanda, Houston, TX (US);
Youichi Uosaki, Machida, JP;
Hiromitsu Saito, Sagamihara, JP;
Hiroshi Sano, Machida, JP;
Eiji Kobayashi, Shizuoka, JP;
Makoto Morimoto, Machida, JP;
Satoru Nagamura, Machida, JP;
Assignee:
Kyowa Hakko Kogyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
514253 ; 514 63 ; 514322 ; 514410 ; 514411 ; 544229 ; 544373 ; 546 14 ; 546199 ; 548406 ; 548421 ; 548433 ;
Abstract
DC-88A derivatives represented by the general formula: ##STR1## wherein X represents hydrogen or CO.sub.2 R.sup.1 (in which R.sup.1 represents hydrogen, a straight-chain or branched alkyl having 1 to 4 carbon atoms, allyl, or benzyl); and ##STR2## have an excellent anti-tumor activity and are useful as anti-tumor agents.