OCC1OC (OC2 = C3C (= O) C4 = C (C = C (C = C4O) C (O) = O) C (C4C5 = CC = CC (OC6OC (CO) C (O) C (O) C6O) = C5C (= O) C5 = C4C = C (C = C5O) C (O) = O) C3 = CC = C2) C (O) C C1O (O)

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