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2,4-Pyrrolidinedione,3-[(2E,4E,6E)-1-hydroxy-7-[(1S,6S)-6-[(1E,3E,5E,7E)-7-hydroxy-7-[(5S)-5-(hydroxymethyl)-2,4-dioxo-3-pyrrolidinylidene]-1,3,5-heptatrienyl]-2-cyclohexen-1-yl]-2,4,6-heptatrienylide related products: