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(1R,2R,5R,6S,7S,8R,9R,11R,12S,13S,14R)-8-[(2S,3R,4S,6R)-4-(Dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-2-ethyl-9,12-dihydroxy-6-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-1,5,7,9,11,13-hexamethyl-3,15,17-trioxabicyclo[12.3.0]heptadeca


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