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[(2S,3R,4S,6R)-2-[[(1R,2R,5R,7R,8R,9R,13R,14R)-2-Ethyl-9-methoxy-1,5,7,9,13-pentamethyl-4,6,12,16-tetraoxo-3,15,17-trioxabicyclo[12.3.0]heptadecan-8-yl]oxy]-4,6-dimethyloxan-3-yl] acetate


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