dimethyl 5,6-dihydro-7-methoxy-5,5-dimethyl-6-(2-(2,5-dioxopyrrolidin-1-yl)acetyl)-1H-1-(4,5-dimethoxycarbonyl-1,3-dithiolo-2-spiro)thiopyrano(2,3-c)quinoline-2,3-dicarboxylate
dimethyl 5,6-dihydro-7-methoxy-5,5-dimethyl-6-(2-(2,5-dioxopyrrolidin-1-yl)acetyl)-1h-1-(4,5-dimethoxycarbonyl-1,3-dithiolo-2-spiro)thiopyrano(2,3-c)quinoline-2,3-dicarboxylate