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(1R,2R,5R,7R,8R,9R,11R,13R,14S)-8-[(2S,3R,4R,5S,6R)-4-(Dimethylamino)-3-hydroxy-6-methyl-5-prop-2-enoxyoxan-2-yl]oxy-2-ethyl-9-methoxy-1,5,7,9,11,13-hexamethyl-3,15,17-trioxabicyclo[12.3.0]heptadecane-4,6,12,16-tetrone


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