1 9M0 3-[(2h-1,3-benzodioxol-5-yl)methyl]-8-fluoro-1-(1,3-thiazol-2-yl)[1]benzopyrano[2,3-C]pyrrol-9(2h)-one 1.000 2 24E 3-(4-hydroxybenzyl)-1-(thiophen-2-yl)chromeno[2,3-C]pyrrol-9(2h)-one 0.781 3 9T9 3-[(2h-1,3-benzodioxol-5-yl)methyl]-8-fluoro-6-{[2-(4-methylpiperazin-1-yl)ethyl]amino}-1-(1,3-thiazol-2-yl)[1]benzopyrano[2,3-C]pyrrol-9(2h)-one 0.750