| abstract |
The present invention relates to amide derivatives of formula (I) or (II) of 19-carboxy-19-deformyl 16-membered ring macrolide antibiotics rosaramicin, repromicin, tylosin, 5-O-mycaminosyltylonolide, 4-deoxy-O-mycaminosyltylonolide, desmycosin, lactenocin, O-demethyllactenocin, cirramycin A1, and 23-deoxymycaminosyltylonolide, which are useful against bacterial and mycoplasmic pathogens in aminals. A1so claimed are a pharmaceutical composition of such derivatives and their use in treating bacterial and mycoplasmic infections in animals. |