Patent ID: 7473671

Claim:
A glycopeptide of the formula A 1 -A 2 -A 3 -A 4 -A 5 -A 6 -A 7 , wherein the groups A 1 to A 7 comprise the heptapeptide structure of naturally occurring vancomycin; and wherein the group A 4 is linked via a glycosidic bond to a disaccharide having a glucose residue directly attached to said A 4 residue, wherein said glucose residue bears an N-substituted aminohexose residue selected from the group consisting of allyloxycarbonyl, N-decyl, and N-4-(4-chlorophenyl)benzyl and a substituent of the formula YXR, attached to the C-6 position of said glucose; wherein the group Y is a single bond, the group X is O, NR 1 , S, SO 2 , C(O)O, C(O)S, C(S)O, C(S)S, C(NR 1 )O, C(O)NR 1 , or halo (in which case Y and R are absent); and R and R 1 are independently hydrogen, alkyl, aryl, aralkyl, alkanoyl, aroyl, aralkanoyl, heterocyclic, heterocyclic-carbonyl, heterocyclic-alkyl, heterocyclic-alkyl-carbonyl, alkylsulfonyl or arylsulfonyl; and any pharmaceutically acceptable salts thereof provided that said substituent of the formula YXR is not hydroxyl.