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:
Mar. 17, 1987
Filed:
May. 04, 1984
Applicant:
Inventors:
Tadashi Hirata, Yokohama, JP;
Shigeru Kobayashi, Sagamihara, JP;
Keiichi Takahashi, Machida, JP;
Makoto Morimoto, Shizuoka, JP;
Yuko Arai, Susono, JP;
Assignee:
Kyowa Hakko Kogyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; A61K / ;
U.S. Cl.
CPC ...
544343 ; 544342 ;
Abstract
A compound represented by the formula: ##STR1## wherein R is a hydrogen atom or a lower alkyl group, X is a hydroxymethyl group and Y is a cyano group, and when R is a lower alkyl group, X and Y may combine to form --CH.sub.2 --O--, and salts thereof, process for preparing the same, and an anti-tumor composition containing the same, which is improved in stability in comparison with a starting compound DC-52.