Patent ID: 6699848
Filing Date: 2004-03-02
Classification: C07H

Abstract:
A compound having the formula wherein R2 is hydrogen, a monomeric glycoside or an oligomeric glycoside, R3 is hydrogen, a monomeric glycoside, an oligomeric glycoside, or a group having the formula R is a lower alkylene, Râ€² is selected from the group consisting of moieties having the formula where X=0 or 1, Y=0 or 1,R1 is hydrogen or a pharmacologically active drug residue, R8 a pharmacologically active drug residue, R4, R5, and R6 are independently hydrogen, alkyl, aryl, aralkyl, cycloalkyl or together form a nitrogen-containing ring selected from the group consisting of â€ƒand R7 is hydroxyl or hydroxyalkyl, with the proviso that said compound contains at least one pharmacologically active drug residue, or a pharmaceutically acceptable salt thereof.