| abstract |
Compounds of the formula I in which R 1 means methyl, ethyl, propyl, butyl; R2 means H, OH; R3 means a monosaccharide moiety, disaccharide moiety, trisaccharide moiety, tetrasaccharide moiety, the monosaccharide moiety, disaccharide moiety, trisaccharide moiety or tetrasaccharide moiety being eventually substituted, once or several times, with a saccharide protecting group ; Z means - (C = O) n-C0-16 alkyl-, - (C = O) n-C0-16 alkyl- NH-, - (C = O) n-C0-16-O- alkyl, - ( C = O) n-C1-16 alkyl- (C = O) m, a covalent bond; n means 0 or 1; m means 0 or 1; as well as its pharmaceutically tolerable salts and physiologically functional derivatives. |