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.

Date of Patent:
Aug. 04, 1992

Filed:

Aug. 08, 1991
Applicant:
Inventors:

Yukio Suzuki, Shizuoka, JP;

Kouichi Kuno, Shizuoka, JP;

Motoshi Shoda, Shizuoka, JP;

Masao Yaso, Shizuoka, JP;

Satoshi Yaginuma, Shizuoka, JP;

Akira Asahi, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; A01N / ;
U.S. Cl.
CPC ...
562469 ; 549427 ; 560 59 ;
Abstract

An aldose reductase inhibitor, comprising a compound of the formula ##STR1## or a pharmaceutically acceptable salt thereof as the effective component, in which R denotes an alkyl of C.sub.1-12, ##STR2## wherein X.sub.1 and X.sub.2 are same or different and are hydrogen or halogen, cyclohexylmethyl, cyclohexyl, tetra-hydro-2H-pyran-1-yl-methyl, carboxy-lower alkyl or cyclo-lower alkyl and n is 2 or 3. These compounds exhibit a superior aldose reductase inhibiting activity with simultaneous high stability, and are for use in the prevention and therapy of diabetic complications.


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