The molecule is a lactam obtained via formal condensation of the carboxy group of an N-acetylneuraminyl residue and the amino group of the adjacent galactosamine residue in the ganglioside (2S,3R,4E)-3-hydroxy-2-(stearoylamino)octadec-4-en-1-yl N-acetylneuraminyl-(2->3)-beta-D-galactosaminyl-(1->4)-beta-D-glucoside. It is an oxaspiro compound, an azaspiro compound, a lactam and a ganglioside derivative.
N-[(E,2S,3R)-1-[(2R,3R,4R,5S,6R)-5-[(2S,4'S,4aR,5S,5'R,6'R,7R,8R,8aR)-5'-acetamido-4',8-dihydroxy-7-(hydroxymethyl)-3-oxo-6'-[(1R,2R)-1,2,3-trihydroxypropyl]spiro[4,4a,5,7,8,8a-hexahydropyrano[4,3-b][1,4]oxazine-2,2'-oxane]-5-yl]oxy-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3-hydroxyoctadec-4-en-2-yl]octadecanamide