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:
Jan. 25, 1983
Filed:
Oct. 29, 1980
Applicant:
Inventors:
Assignee:
Fujisawa Pharmaceutical Co., Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
424258 ; 424250 ; 424251 ; 544238 ; 544316 ; 544363 ; 546148 ; 546 90 ; 546140 ; 546147 ; 260155 ;
Abstract
A 1,2,3,4-tetrahydroisoquinoline having smooth muscle relaxant activity of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen or lower alkyl, R.sub.3 is phenyl having substituents selected from the group consisting of lower alkenyloxy, mercapto, lower alkylthio, sulfamoyl and mono or disubstituted sulfamoyl, or a heterocyclic group, R.sub.4 and R.sub.5 are each hydroxy or protected hydroxy and X is --O-- or--S--.