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. 08, 1977
Filed:
Aug. 20, 1975
Charles Sylvester Fake, Harlow, EN;
Beecham Group Limited, , EN;
Abstract
Compounds of the formula: ##STR1## and their pharmaceutically acceptable non-toxic salts, wherein R.sub.1 is alkyl of 5 to 8 carbon atoms which is straight chained or .alpha.-substituted by a methyl group or .alpha.,.alpha.-disubstituted by methyl groups and R.sub.5 is hydrogen, R.sub.6 or CO.R.sub.6 wherein R.sub.6 is alkyl of 1 to 4 carbon atoms or alkyl of 1 to 4 carbon atoms substituted by NR.sub.7 R.sub.8 wherein R.sub.7 and R.sub.8 are each hydrogen or alkyl of 1 to 4 carbon atoms or NR.sub.7 R.sub.8 is pyrrolidino, piperidino or morpholino, have been found to possess good antihypertensive activity while being of low-toxicity and substantially free of sedative side effects.