2-(Pyridin-4-yl)-2,3-dihydronaphtho[1,2-b]furan-4,5-dione
2-(Pyridin-4-yl)-2,3-dihydronaphtho[1,2-b]furan-4,5-dione ??
??
2-(Pyridin-4-yl)-2,3-dihydronaphtho[1,2-b]furan-4,5-dione C??? ??, ??, ??
2-(Pyridin-4-yl)-2,3-dihydronaphtho[1,2-b]furan-4,5-dione ?? ?? ? ???
???
?? ??
2-(Pyridin-4-yl)-2,3-dihydronaphtho[1,2-b]furan-4,5-dione ?? ??
???( 0)?? ??