PROCESS FOR PREPARING GLYCOPEPTIDE ANTIBIOTIC DERIVATIVES,SOME SUCH COMPOUNDS,FEED COMPOSITIONS COMPRISING THEM AND THEIR USE

摘要

Method of preparing compounds of formula 1: 1 by oxidative deamination of a glycopeptide antibiotic of formula 2: 2 the antibiotic being selected from A35512 factors A, B, C, E and H, A35512B pseudoaglycone, actaplanin factors A, B1, B2, B3, C1a, C2a, C3, D1, D2, E1, G, K, L, M, N and O, actaplanin pseudoaglycone, A41030 factors A, B, C, D, E, F and G, A47934, ristocetin A and ristocetin A pseudoaglycone, novel compounds and compositions and methods of increasing feed-utilization efficiency in animals are provided.