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[(2S,3S,4R,6R)-6-[[(3R,4R,8R,9R,12R,13S,14S,15R,16R,19R)-15-[(2S,3R,4S,6R)-3-Acetyloxy-4-(dimethylamino)-6-methyloxan-2-yl]oxy-9-ethyl-3,8,12,14,16,19-hexamethyl-2,6,11-trioxo-5,7,10,17-tetraoxa-1-azatricyclo[14.2.2.04,8]icosan-13-yl]oxy]-4-methoxy-2,4-di


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