Pleuromutilinderivat befraemjande tillvaext

摘要

Compound with formula I in which R1 is ethyl or vinyl and R2 is a heterocyclic ring with five members or aminoalkyl unsubstituted or substituted in its alkyl moiety with hydroxy; in free form or in a form of acid addition salt or quaternary salt, which compounds are intended to be used for promoting growth in domestic animals.