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:
Nov. 14, 1989
Filed:
Mar. 25, 1988
Applicant:
Inventors:
Masaji Kasai, Kanagawa, JP;
Yutaka Kanda, Tokyo, JP;
Motomichi Kono, Tokyo, JP;
Yutaka Saito, Tokyo, JP;
Makoto Morimoto, Shizuoka, JP;
Tadashi Ashizawa, Shizuoka, JP;
Assignee:
Kyowa Hakko Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61L / ;
U.S. Cl.
CPC ...
514409 ; 548422 ; 548407 ;
Abstract
Mitomycin derivatives having potent anti-tumor activity having the formula: ##STR1## wherein one of R.sub.1 and R.sub.2 represents carbamoyloxymethyl and the other represents hydrogen or R.sub.1 and R.sub.2 are bonded together to form methylene;