phelligridin G

1H,6H-Pyrano[4,3-c][2]benzopyran-1,6-dione, 3-[5-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-5′,6′-dihydroxy-3-oxospiro[furan-2(3H),1′-[1H]inden]-2′-yl]-8,9-dihydroxy-

3-{5-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-5′,6′-dihydroxy-3-oxo-3H-spiro[furan-2,1′-inden]-2′-yl}-8,9-dihydroxy-1H,6H-pyrano[4,3-c]isochromene-1,6-dione

3-{5-[(E)-2-(3,4-Dihydroxyphenyl)vinyl]-5′,6′-dihydroxy-3-oxo-3H-spiro[furan-2,1′-inden]-2′-yl}-8,9-dihydroxy-1H,6H-pyrano[4,3-c]isochromen-1,6-dion

3-{5-[(E)-2-(3,4-Dihydroxyphenyl)vinyl]-5′,6′-dihydroxy-3-oxo-3H-spiro[furan-2,1′-inden]-2′-yl}-8,9-dihydroxy-1H,6H-pyrano[4,3-c]isochromene-1,6-dione

3-{5-[(E)-2-(3,4-Dihydroxyphényl)vinyl]-5′,6′-dihydroxy-3-oxo-3H-spiro[furan-2,1′-inden]-2′-yl}-8,9-dihydroxy-1H,6H-pyrano[4,3-c]isochromène-1,6-dione

phelligridin G

(±)-phelligridin G

5-{5-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-5′,6′-dihydroxy-3-oxo-3H-spiro[furan-2,1′-indene]-2′-yl}-12,13-dihydroxy-4,8-dioxatricyclo[8.4.0.02,7]tetradeca-1(10),2(7),5,11,13-pentaene-3,9-dione