Compound of the general formula: A[L-CH-CA] p wherein A represents a carbohydrate antigen of 1 to 10.000 carbohydrate monomers and the carbohydrate antigen belongs to the class of polysaccharides, wherein the carbohydrate monomers of the carbohydrate antigen are optionally modified to carry amide, carbonate, carbamate, carbonyl, thiocarbonyl, carboxy, thiocarboxy, ester, thioester, ether, epoxy, hydroxyalkyl, alkylenyl, phenylene, alkenyl, imino, imide, isourea, thiocarbamate, thiourea and/or urea moieties, p is the number of residues -L-CH-CA which are bound to the carbohydrate antigen A, and p is an integer defined as follows: p is 1 or 2 if u is 1 p is 1, 2, 3 or 4 if u is 2 p is 1, 2, 3, 4, 5 or 6 if u is 3 p is 1, 2, 3, 4, 5, 6, 7 or 8 if u is 4 1 ≤ p ≤ 10 if 5 ≤ u ≤ 10 2 ≤ p ≤ 50 if 11 ≤ u ≤ 100 20 ≤ p ≤ 200 if 101 ≤ u ≤ 1000 50 ≤ p ≤ 400 if 1001 ≤ u ≤ 10000 u is the number of carbohydrate monomers of the carbohydrate antigen A L represents -L 1 -L 2 -, -L 2 -, -L 2 -L 3 - or -L 1 -L 2 -L 3 -; L 1 represents one of the following residues: wherein x is in integer from 1 to 60; Y represents a bond, -NH-, -O-, -S-; -S-S-; L 2 represents -CH 2 -, -C 2 H 4 -, -C 3 H 6 -, -C 4 H 8 -, -C 5 H 10 -, -C 6 H 12 -, -C 7 H 14 -, -C 8 H 16 -, -C 9 H 18 -, -C 10 H 20 -, -CH(CH 3)-, -C[(CH 3) 2]-, -CH 2 -CH(CH 3)-, -CH(CH 3)-CH 2 -, -CH(CH 3)-C 2 H 4 -, -CH 2 -CH(CH 3)-CH 2 -, -C 2 H 4 -CH(CH 3)-, -CH 2 -C[(CH 3) 2]-, -C[(CH 3) 2]-CH 2 -, -CH(CH 3)-CH(CH 3)-, -C[(C 2 H 5)(CH 3)]-, -CH(C 3 H 7)-, -(CH 2 -CH 2 -O) n -CH 2 -CH 2 -, -CO-CH 2 -, -CO-C 2 H 4 -, -CO-C 3 H 6 -, -CO-C 4 H 8 -, -CO-C 5 H 10 -, -CO-C 6 H 12 -, -CO-C 7 H 14 -, -CO-C 8 H 16 -, -CO-C 9 H 18 -, -CO-C 10 H 20 -, -CO-CH(CH 3)-, -CO-C[(CH 3) 2]-, -CO-CH 2 -CH(CH 3)-, -CO-CH(CH 3)-CH 2 -, -CO-CH(CH 3)-C 2 H 4 -, -CO-CH 2 -CH(CH 3)-CH 2 -, -CO-C 2 H 4 -CH(CH 3)-, -CO-CH 2 -C[(CH 3) 2]-, -CO-C[(CH 3) 2]-CH 2 -, -CO-CH(CH 3)-CH(CH 3)-, -CO-C[(C 2 H 5)(CH 3)]-, -CO-CH(C 3 H 7)-, -CO-(CH 2 -CH 2 -O) n -CH 2 -CH 2 -; n represents an integer from 1 to 60; L 3 represents -CO-, -O-CO-, -NH-CO-, -NH(C=NH)-, -SO 2 -, -O-SO 2 -, -NH-, -NH-CO-CH 2 -; CH represents a monosaccharide, a disaccharide or a trisaccharide; CA represents R* and R # represent independently of each other a linear or branched or cyclic, substituted or unsubstituted, saturated or unsaturated carbon residue consisting of 1 to 30 carbon atoms; and tautomers and pharmaceutically acceptable salts thereof. A represents a carbohydrate antigen of 1 to 10.000 carbohydrate monomers and the carbohydrate antigen belongs to the class of polysaccharides, wherein the carbohydrate monomers of the carbohydrate antigen are optionally modified to carry amide, carbonate, carbamate, carbonyl, thiocarbonyl, carboxy, thiocarboxy, ester, thioester, ether, epoxy, hydroxyalkyl, alkylenyl, phenylene, alkenyl, imino, imide, isourea, thiocarbamate, thiourea and/or urea moieties, p is the number of residues -L-CH-CA which are bound to the carbohydrate antigen A, and p is an integer defined as follows: p is 1 or 2 if u is 1 p is 1, 2, 3 or 4 if u is 2 p is 1, 2, 3, 4, 5 or 6 if u is 3 p is 1, 2, 3, 4, 5, 6, 7 or 8 if u is 4 1 ≤ p ≤ 10 if 5 ≤ u ≤ 10 2 ≤ p ≤ 50 if 11 ≤ u ≤ 100 20 ≤ p ≤ 200 if 101 ≤ u ≤ 1000 50 ≤ p ≤ 400 if 1001 ≤ u ≤ 10000 u is the number of carbohydrate monomers of the carbohydrate antigen A L represents -L 1 -L 2 -, -L 2 -, -L 2 -L 3 - or -L 1 -L 2 -L 3 -; L 1 represents one of the following residues: wherein x is in integer from 1 to 60; Y represents a bond, -NH-, -O-, -S-; -S-S-; L 2 represents -CH 2 -, -C 2 H 4 -, -C 3 H 6 -, -C 4 H 8 -, -C 5 H 10 -, -C 6 H 12 -, -C 7 H 14 -, -C 8 H 16 -, -C 9 H 18 -, -C 10 H 20 -, -CH(CH 3)-, -C[(CH 3) 2]-, -CH 2 -CH(CH 3)-, -CH(CH 3)-CH 2 -, -CH(CH 3)-C 2 H 4 -, -CH 2 -CH(CH 3)-CH 2 -, -C 2 H 4 -CH(CH 3)-, -CH 2 -C[(CH 3) 2]-, -C[(CH 3) 2]-CH 2 -, -CH(CH 3)-CH(CH 3)-, -C[(C 2 H 5)(CH 3)]-, -CH(C 3 H 7)-, -(CH 2 -CH 2 -O) n -CH 2 -CH 2 -, -CO-CH 2 -, -CO-C 2 H 4 -, -CO-C 3 H 6 -, -CO-C 4 H 8 -, -CO-C 5 H 10 -, -CO-C 6 H 12 -, -CO-C 7 H 14 -, -CO-C 8 H 16 -, -CO-C 9 H 18 -, -CO-C 10 H 20 -, -CO-CH(CH 3)-, -CO-C[(CH 3) 2]-, -CO-CH 2 -CH(CH 3)-, -CO-CH(CH 3)-CH 2 -, -CO-CH(CH 3)-C 2 H 4 -, -CO-CH 2 -CH(CH 3)-CH 2 -, -CO-C 2 H 4 -CH(CH 3)-, -CO-CH 2 -C[(CH 3) 2]-, -CO-C[(CH 3) 2]-CH 2 -, -CO-CH(CH 3)-CH(CH 3)-, -CO-C[(C 2 H 5)(CH 3)]-, -CO-CH(C 3 H 7)-, -CO-(CH 2 -CH 2 -O) n -CH 2 -CH 2 -; n represents an integer from 1 to 60; L 3 represents -CO-, -O-CO-, -NH-CO-, -NH(C=NH)-, -SO 2 -, -O-SO 2 -, -NH-, -NH-CO-CH 2 -; CH represents a monosaccharide, a disaccharide or a trisaccharide; CA represents R* and R # represent independently of each other a linear or branched or cyclic, substituted or unsubstituted, saturated or unsaturated carbon residue consisting of 1 to 30 carbon atoms;