3,3′,4′,5,8,10′-Hexahydroxy-7-methoxy-7′-methyl-3H,3′H-spiro[naphtho[2,3-b]furan-2,2′-pyrano[4,3-g]chromene]-4,9,9′(4′H)-trione

3,3′,4′,5,8,10′-Hexahydroxy-7-methoxy-7′-methyl-3H,3′H-spiro[naphtho[2,3-b]furan-2,2′-pyrano[4,3-g]chromene]-4,9,9′(4′H)-trione

Spiro[benzo[1,2-b:5,4-c′]dipyran-2(9H),2′(3′H)-naphtho[2,3-b]furan]-4′,9,9′-trione, 3,4-dihydro-3,3′,4,5′,8′,10-hexahydroxy-7′-methoxy-7-methyl-

Griseorhodin C