Dimethyl (5R,5′R,10aR,10a′R)-1,1′,5,5′,9,9′-hexahydroxy-3,3′-dimethyl-8,8′-dioxo-5,5′,6,6′,7,7′,8,8′-octahydro-10aH,10a′H-2,4′-bixanthene-10a,10a′-dicarboxylate

(5R,5′R,10aR,10a′R)-1,1′,5,5′,9,9′-Hexahydroxy-3,3′-diméthyl-8,8′-dioxo-5,5′,6,6′,7,7′,8,8′-octahydro-10aH,10a′H-2,4′-bixanthène-10a,10a′-dicarboxylate de diméthyle

[5,7′-Bi-1H-xanthene]-4a,4′a(2H,2′H)-dicarboxylic acid, 3,3′,4,4′-tetrahydro-4,4′,8,8′,9,9′-hexahydroxy-6,6′-dimethyl-1,1′-dioxo-, dimethyl ester, (4R,4′R,4aR,4a′R)-

Dimethyl (5R,5′R,10aR,10a′R)-1,1′,5,5′,9,9′-hexahydroxy-3,3′-dimethyl-8,8′-dioxo-5,5′,6,6′,7,7′,8,8′-octahydro-10aH,10a′H-2,4′-bixanthene-10a,10a′-dicarboxylate

Dimethyl-(5R,5′R,10aR,10a′R)-1,1′,5,5′,9,9′-hexahydroxy-3,3′-dimethyl-8,8′-dioxo-5,5′,6,6′,7,7′,8,8′-octahydro-10aH,10a′H-2,4′-bixanthen-10a,10a′-dicarboxylat

rugulotrosin B