(8S)-1′,3′,9-Trihydroxy-6′-methoxy-3-[(1E,3E)-1,3-pentadien-1-yl]-6,7-dihydrospiro[cyclopenta[g]isoquinoline-8,2′-cyclopenta[b]naphthalene]-1,4′,5′,8′,9′(2H)-pentone

(8S)-1′,3′,9-Trihydroxy-6′-methoxy-3-[(1E,3E)-1,3-pentadien-1-yl]-6,7-dihydrospiro[cyclopenta[g]isoquinoline-8,2′-cyclopenta[b]naphthalene]-1,4′,5′,8′,9′(2H)-pentone

Spiro[2H-benz[f]indene-2,8′-[8H]cyclopent[g]isoquinoline]-1′,4,5,8,9(2′H)-pentone, 6′,7′-dihydro-1,3,9′-trihydroxy-6-methoxy-3′-[(1E,3E)-1,3-pentadien-1-yl]-, (2S)-

fredericamycin A