2-Aminoethanol derivatives, their preparation and use in pharmaceutical compositions
申请人:BEECHAM GROUP PLC
公开号:EP0022629A2
公开(公告)日:1981-01-21
Compounds of formula (I)
wnerem
R1 is C1-6 alkyl or C5-7 cycloalkyl;
R2 is hydrogen or C1-6 alkyl; or
NR1R2 represents a heterocyclic ring having 5 to 7 ring atoms and only one hetero-atom; and
R3 is C1-4 alkyl, one carbon atom of which is dior tri-halogenated
or salts thereof are useful in promoting growth of ruminants. Processes for their production, veterinary formulations and treatments are described.