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:
May. 12, 1981
Filed:
Nov. 14, 1977
Applicant:
Inventors:
Frederic P Hauck, Somerville, NJ (US);
Christopher M Cimarusti, Hamilton, NJ (US);
Joseph E Sundeen, Yardley, PA (US);
Assignee:
E. R. Squibb & Sons, Inc., Princeton, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564428 ; 2603437 ; 26034829 ; 260349 ; 26050118 ; 26050119 ; 424280 ; 424316 ; 424330 ; 564184 ; 564413 ;
Abstract
5,6,7,8-Tetrahydronaphthalenes having the structure ##STR1## and the pharmaceutically acceptable salts thereof, are useful as blood pressure lowering agents. In the above formula R.sub.1 can be hydrogen or alkyl; R.sub.2 is alkyl; R.sub.3 and R.sub.4 can each be hydrogen, hydroxyl, alkoxy, or arylalkoxy, but both cannot be hydroxyl. Those compounds wherein at least one of R.sub.3 and R.sub.4 is other than hydrogen are novel, and constitute a part of this invention.