SIALIC ACID DERIVATIVES

摘要

Sialic acid reducing units are passivated, for instance by reduction, or by reductive amination or capping. The process is useful for producing chemically inert sialic acid compounds especially polysialic acids for instance of use as excipient, such as carriers, diluents, viscosity modifiers, moisture­retention agents etc. Passivated polysialic acids may be therapeutically useful agents.