328069-19-8

tetramethyl 9'-ethoxy-6'-[3-(4-methoxyphenyl)acryloyl]-5',5'-dimethyl-5',6'-dihydrospiro[1,3-dithiole-2,1'-(1'H)-thiopyrano[2,3-c]quinoline]-2',3',4,5-tetracarboxylate tetramethyl 9'-ethoxy-6'-[(2E)-3-(4-methoxyphenyl)prop-2-enoyl]-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, 9'-ethoxy-5',6'-dihydro-6'-[3-(4-methoxyphenyl)-1-oxo-2-propenyl]-5',5'-dimethyl-, tetramethyl ester (9CI)