1 837 Ethyl 4-[5-(morpholin-4-yl)-7-oxo-7h-thieno[3,2-B]pyran-3-yl]benzoate 1.000 2 82Y N-hydroxy-4-[5-(morpholin-4-yl)-7-oxo-7h-thieno[3,2-B]pyran-3-yl]benzamide 0.828 3 LY2 2-morpholin-4-yl-7-phenyl-4h-chromen-4-one 0.724 4 82V 3-(2,3-dihydro-1,4-benzodioxin-6-yl)-5-(morpholin-4-yl)-7h-thieno[3,2-B]pyran-7-one 0.710