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. 23, 1976
Filed:
Sep. 13, 1973
Nippon Zoki Pharmaceutical Co., Ltd., Osaka, JA;
Abstract
Trioxopteridine derivatives of the formula ##SPC1## , wherein R.sub.1 is a normal alkyl group having 0 to 6 hydroxyl groups and R.sub.2 is hydrogen or a normal lower alkyl group having 0 to 5 hydroxyl groups, are prepared by catalytically hydrogenating a 6-substituted-5-nitro-2,4-dioxopyrimidine to give a 6-substituted-5-amino-2,4-dioxopyrimidine, and then reacting the latter compound with a compound of the formula R.sub.2 --A--COOR.sub.3, wherein R.sub.3 is hydrogen, lower alkyl, an alkali metal or an alkaline earth metal and A is carbonyl or a group of the formula ##EQU1## wherein R.sub.4 is lower alkyl. The resulting trioxopteridine derivatives have analgesic and antiphlogistic properties and are therefore useful as pharmaceutical medicaments.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile