4-Hydroxy-6,7-dimethoxy-9-(1,3-benzodioxole-5-yl)-1,3-dihydronaphtho[2,3-c]furan-1-one; 9-(1,3-Benzodioxol-5-yl)-4-hydroxy-6,7-dimethoxynaphtho[2,3-c]furan-1(3H)-one; 9-(1,3-benzodioxol-5-yl)-4-hydroxy-6,7-dimethoxy-3H-benzo[f][2]benzofuran-1-one; 7-hydroxyjusticidin B
