Patent ID: 7019023

Claim:
A coated pharmaceutical composition comprising at least one compound of formula I in which R 1 is methyl, ethyl, propyl, or butyl; R 2 is H, OH, NH 2 , or NH—(C 1 –C 6 )-alkyl; R 3 is a sugar radical, a disugar radical, a trisugar radical, or a tetrasugar radical, wherein said radicals are optionally mono- or polysubstituted by a sugar protective group; R 4 is methyl, ethyl, propyl, or butyl; R 5 is methyl, ethyl, propyl, or butyl; Z is —(C═O) n —(C 0 –C 16 )-alkyl, —(C═O) n —(C 0 –C 16 )-alkyl-NH—, —(C═O) n —(C 0 –C 16 )-alkyl-O—, —(C═O) n —(C 1 –C 16 )-alkyl-(C═O) m , or a covalent bond; n is 0 or 1; m is 0 or 1; or a pharmaceutically tolerable salt thereof, or a physiologically functional derivative thereof, and at least one pharmacologically tolerable excipient.