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[(2S,3R,4S,6R)-4-(Dimethylamino)-2-[[(2R,3R,7R,8R,11R,13S,14R,15R,17R)-8-ethyl-2,7,11,13,15,17-hexamethyl-5,10-dioxo-4,6,9,20-tetraoxa-1-azatricyclo[13.3.2.03,7]icosan-14-yl]oxy]-6-methyloxan-3-yl] acetate


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