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(7R,8S,10R,11S,16S,17aR,19S)-2,3,16,17,17,19-hexahydroxy-10-(hydroxymethyl)-5,13,15-trioxo-5,7,8,10,11,13,15,16,17,17a-decahydro-1,16-epoxy-7,11-methanodibenzo[i,k][1,4,7]trioxacyclotridecin-8-yl 3,4, related products: