[Amides of ganglioside GD3]. / Amidy gangliozida GD3.

Analysis of natural ganglioside lactones usually employs NH3 treatment. In the present paper it has been shown that the GD3 dilactone forms with ammonia three rather than one GD3 amides--a GD3 diamide and two GD3 monoamides. The structure of these amides is discussed.