(1S,7a′S,11a′R)-5′,6′,7a′,8′,11a′-Pentahydroxy-3′-methoxy-2,6,6-trimethyl-7′,10′,12′-trioxo-7′,7a′,10′,11′,11a′,12′-hexahydro-1′H-spiro[cyclohex-2-ene-1,2′-cyclopenta[de]tetracene]-9′-carboxamide

(1S,7a′S,11a′R)-5′,6′,7a′,8′,11a′-Pentahydroxy-3′-methoxy-2,6,6-trimethyl-7′,10′,12′-trioxo-7′,7a′,10′,11′,11a′,12′-hexahydro-1′H-spiro[cyclohex-2-ene-1,2′-cyclopenta[de]tetracene]-9′-carboxamide

Spiro[cyclohex-2-ene-1,2′(1′H)-cyclopenta[de]naphthacene]-9′-carboxamide, 7′,7′a,10′,11′,11′a,12′-hexahydro-5′,6′,7′a,8′,11′a-pentahydroxy-3′-methoxy-2,6,6-trimethyl-7′,10′,12′-trioxo-, (1S,7a′S,11a′R )-

(+)-viridicatumtoxin B