IUPAC:2',3',4,5-tetramethyl 6'-[2-(2,5-dioxopyrrolidin-1-yl)acetyl]-7'-methoxy-5',5'-dimethyl-5',6'-dihydrospiro[1,3-dithiole-2,1'-thiopyrano[2,3-c]quinoline]-2',3',4,5-tetracarboxylate
IUPAC:2',3',4,5-tetramethyl 6'-[2-(2,5-dioxopyrrolidin-1-yl)acetyl]-7'-methoxy-5',5'-dimethyl-5',6'-dihydrospiro[1,3-dithiole-2,1'-thiopyrano[2,3-c]quinoline]-2',3',4,5-tetracarboxylate