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:
Apr. 03, 1990
Filed:
Mar. 10, 1988
Applicant:
Inventors:
Jonathan R Arch, Epsom, GB;
Norman H Rogers, Tadworth, GB;
Assignee:
Beecham Group p.l.c., Middlesex, GB;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544163 ; 544106 ; 544166 ; 544173 ;
Abstract
A method for inceasing the weight gain and/or improving the feed utilization efficiency and/or increasing the lean body mass and/or decreasing birth mortality rate and increasing post-natal survival rate of livestock comprises the administration to livestock of an effective, non-toxic amount of a compound of formula (I), or a veterinarily acceptable acid addition salt thereof: ##STR1## wherein R.sup.1 is phenyl (C.sub.1-6)alkyl or optionally substituted C.sub.1-6 alkyl, and W is optionally substituted phenyl, a heterocyclyl group, or phenoxymethyl optionally substituted on the phenyl group. Certain compounds of formula (I) are novel.