Teicoplanin (TARGOCID, marketed by Sanofi Aventis Ltd) is actually a mixture of several compounds, five major (named teicoplanin A2-1 through A2-5) and four minor (named teicoplanin RS-1 through RS-4) [REF].
The structures of the teicoplanin core and the side-chains that characterize the five major teicoplanin compounds are shown below.