Compounds, process for the prevention, treatment or control of infeccoes, process to control insects and to control nematodeos, composition for the treatment, prevention and control of infeccoes,And the composition for the control of insects

摘要

The present invention relates to novel 5-acyl, 23-acyl and 5,23-diacyl derivatives of the LL-F28249 compounds. These LL-F28249 compounds (collectively) are isolates from the fermentation broth of Streptomyces cyaneogriseus subspecies noncyanogenus having deposit accession number NRRL 15773. The present 5-acyl and 5,23-diacyl compounds are prepared by selective acylation using acid chlorides or anhydrides in the presence of 4-dimethylaminopyridine. The 23-acyl compounds are prepared by selective acylation of the 5-O-silylated LL-F28249 compounds. These novel compounds have potent anthelmintic, insecticidal, ectoparasiticidal, nematicidal and acaricidal activity. Compositions containing these derivatives of LL-F28249 also are described herein.