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. 11, 1978
Filed:
Feb. 17, 1977
Applicant:
Inventors:
Satoru Tanaka, Higashi-kurume, JA;
Keiichi Munakata, Yono, JA;
Assignee:
Eisai Co., Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07C / ;
U.S. Cl.
CPC ...
424315 ; 2602 / ; 2603 / ; 2603 / ; 2603473 ; 2605 / ; 424263 ; 424275 ; 424282 ; 424285 ;
Abstract
A novel compound having the general formula: ##STR1## wherein R.sub.1 is a residual group selected from the group consisting of substituted phenyl, carbonoylaminophenyl and heterocyclic groups, and R.sub.2 is hydrogen or methyl group, and its salts of a pharmacologically acceptable base and a novel medicament containing the compound or its salt mentioned above as a principal component; and the compound and the salt thereof having superior effect for the treatment of urolithiasis and the pyelonephrosis by exhibiting a strong urease inhibitory action, a high transfer rate into the urine and a low toxicity.