Phenylethanolamine derivatives and acid addition salts thereof for
申请人:American Cyanamid Company
公开号:US04404222A1
公开(公告)日:1983-09-13
There is provided a method for enhancing the growth rate of meat-producing animals and/or improving the efficiency of feed utilization thereby, which involves, orally or parenterally, administering to said animals a growth-enhancing amount of a phenylethane compound or the acid addition salt thereof.
A practical method for the synthesis of brombuterol [1-(4-amino-3,5-dibromophenyl)-2-(tert-butylamino)ethanol] in high overall yield is described starting from 4′-aminoacetophenone using a new chemoselective route.
Method for promoting growth and reducing fat in animals using phenylethanolamine derivatives
申请人:AMERICAN CYANAMID COMPANY
公开号:EP0026298A1
公开(公告)日:1981-04-08
A method for the preparation of an animal feed composition comprising admixing an animal feed with from 0.01 to 400 grams per ton of feed of a compound of the following formula
wherein X, Y, Z, R,, R2, R3 and R4 are as defined in the text.
Some new compounds with the same general formula are claimed. These phenylethanol amine derivatives and their acid addition salts act as growth promotors and fat reducing agents in farm and companion animals.
Method for enhancing the growth rate of meat-producing animals and for improving the lean meat to fat ratio thereof
申请人:AMERICAN CYANAMID COMPANY
公开号:EP0049728A2
公开(公告)日:1982-04-21
There is provided a method for enhancing the growth rate of meat-producing animals, improving the efficiency of feed utilization thereby, and or improving the lean meat to fat ratio thereof, which involves, orally or parenterally, administering to said animals a growth-enhancing amount of a phenylethane compound or the acid addition salt thereof.