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:
Apr. 18, 1989
Filed:
Sep. 29, 1987
Applicant:
Inventors:
Hiromitsu Saito, Sagamihara, JP;
Yoichi Uosaki, Machida, JP;
Akira Sato, Machida, JP;
Tadashi Hirata, Yokohama, JP;
Makoto Morimoto, Shizuoka, JP;
Tadashi Ashizawa, Numazu, JP;
Assignee:
Kyowa Hakko Kogyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
544342 ; 544343 ;
Abstract
Compounds represented by the following formula or by the corresponding hydroquinone type formula: ##STR1## in which R.sup.1 and R.sup.2 are independently hydrogen, lower alkoxy, azido, amino, lower alkylamino, di-lower alkylamino, cyclic amino, lower alkylthio or unsubstituted or substituted arylthio; and X represents hydroxyl and Y represents cyano or X and Y together represents --O-- in the form of --X--Y--, have an excellent antitumor activity.