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b-D-Glucopyranosiduronic acid, (3b,4b,16a,21b,22a)-21-[[4-O-acetyl-6-deoxy-3-O-[(2Z)-2-methyl-1-oxo-2-butenyl]-b-D-galactopyranosyl]oxy]-22-(acetyloxy)-16,23,28-trihydroxyolean-12-en-3-yl2-O-b-D-gluco related products: