331973-60-5

tetramethyl 6'-[(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)acetyl]-7'-ethoxy-5',5'-dimethyl-5',6'-dihydrospiro[1,3-dithiole-2,1'-thiopyrano[2,3-c]quinoline]-2',3',4,5-tetracarboxylate tetramethyl 6'-[(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)acetyl]-7'-ethoxy-5',5'-dimethyl-5',6'-dihydrospiro(1,3-dithiole-2,1'-[1'H]-thiopyrano[2,3-c]quinoline)-2',3',4,5-tetracarboxylate Spiro[1,3-dithiole-2,1'-[1H]thiopyrano[2,3-c]quinoline]-2',3',4,5-tetracarboxylic acid, 6'-[(1,3-dioxo-1H-benz[de]isoquinolin-2(3H)-yl)acetyl]-7'-ethoxy-5',6'-dihydro-5',5'-dimethyl-, tetramethyl ester (9CI)