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. 10, 1981
Filed:
Oct. 26, 1979
Applicant:
Inventors:
Assignee:
Sankyo Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
424279 ; 2603435 ;
Abstract
4-Hydroxy-2-pyrone derivatives of formula (I): ##STR1## (wherein A represents an alkylene group which is optionally alkyl-substituted or an alkenylene group, and Z represents a substituted or unsubstituted aryl or aryloxy group) may be prepared by cyclizing an ester of formula (II): ##STR2## (wherein A and Z are as defined above and R represents an organic group) and have valuable antilipaemic activities.
Oka, Hidehiko. (1981). 4-hydroxy-2-pyrone derivatives having antihyperlipaemic activity (U.S. Patent No. 4255444). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4255444
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile