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  • ethyl (7R,12S,12aR)-6,7,8,9-tetrahydroxy-5,15-dioxo-2,11,12a,13-tetrakis((2R,3R)-3,5,7-trihydroxychroman-2-yl)-5,7,12,12a-tetrahydro-12,7-prop[1]enotetraphene-4-carboxylate

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