Pyrrolophenylalkanolamines as animal yield promoters

摘要

Pyrrolophenylalkanolamines of the formula <IMAGE> R1 and R2 represent hydrogen or various radicals, R3 represents hydrogen, acyl or trialkylsilyl, R4 represents hydrogen or alkyl, R5 represents hydrogen, or, together with R3, represents <IMAGE> wherein R7 represents hydrogen or alkyl, and R6 represents branched or cyfclic alkyl, which is optionally substituted, and salts thereof promote the yield of animals. Many new intermediates are also shown.