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(1E,2S)-5-({6-O-[(3R)-4-carboxy-3-hydroxy-3-methylbutanoyl]-2-O-(beta-D-glucopyranuronosyl)-beta-D-glucopyranosyl}oxy)-1-{(2E)-2-[(2S)-2,6-dicarboxy-2,3-dihydropyridin-4(1H)-ylidene]ethylidene}-6-hydr related products: