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:
Feb. 08, 1994
Filed:
Feb. 09, 1993
Applicant:
Inventors:
Tadashi Yoshida, Osaka, JP;
Toshiyuki Kato, Kawanishi, JP;
Yoshimi Kawamura, Minoo, JP;
Koichi Matsumoto, Toyonaka, JP;
Hiroshi Itazaki, Takarazuka, JP;
Assignee:
Shionogi Seiyaku Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61 / ; C07D / ; C07D / ; C12P / ;
U.S. Cl.
CPC ...
514468 ; 435126 ; 549456 ; 549458 ;
Abstract
The present invention relates to an aldose reductase inhibitor represented by the formula: ##STR1## wherein R.sub.1 is (CH.sub.2).sub.2 COOH and R.sub.2 is phenyl or p-hydroxyphenyl, or R.sub.1 and R.sub.2 are combined together to form a group of the formula: ##STR2## which was isolated from the fermentation products of Chaetomella circinoseta RF-3192.