327170-21-8

tetramethyl 6-(2-chlorobenzoyl)-9-ethoxy-5,5-dimethyl-5,6-dihydrospiro(1H-thiopyrano[2,3-c]quinoline-1,2'-[1,3]-dithiole)-2,3,4',5'-tetracarboxylate tetramethyl 6'-[(2-chlorophenyl)carbonyl]-9'-ethoxy-5',5'-dimethyl-5',6'-dihydrospiro[1,3-dithiole-2,1'-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'-(2-chlorobenzoyl)-9'-ethoxy-5',6'-dihydro-5',5'-dimethyl-, tetramethyl ester (9CI)