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. 26, 1991
Filed:
Jan. 05, 1990
Applicant:
Inventors:
Assignee:
Tanabe Seiyaku Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07D / ;
U.S. Cl.
CPC ...
549299 ; 549298 ; 560 56 ; 556438 ; 558406 ;
Abstract
A novel process for preparing a naphthalene derivative of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are a lower alkoxycarbonyl group or both may combine to form a group of the formula ##STR2## one of R.sup.3 and R.sup.4 is hydrogen atom or a lower alkoxy group and the other is a lower alkoxy group; ring A is a substituted or unsubstituted benzene ring, which is useful as a hypolipidemic agent, and a novel intermediate of the formula: ##STR3## wherein R1, R2, R3, R4 and ring A are the same as defined above.
Iwasaki, Tameo. (1991). Process for preparing a naphthalene derivative and a synthetic (U.S. Patent No. 5003087). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5003087
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile