[1]benzopyrano[2,3-c]pyrrole-3,9-dione, 1,2-dihydro-1-(4-hydroxy-3-methoxyphenyl)-2-(3-methyl-2-pyridinyl)-;1-(4-Hydroxy-3-methoxyphenyl)-2-(3-methylpyridin-2-yl)-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione
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