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(1R,3R,6R,7S,8S,9R,10S,12R,14R,15R)-9-[(2S,3R,4S,6R)-4-(Dimethylamino)-3-(4-fluoro-2-nitrophenoxy)-6-methyloxan-2-yl]oxy-7-(4-fluoro-2-nitrophenoxy)-10-methoxy-2,6,8,10,12,14-hexamethyl-4,16,18-trioxatricyclo[13.3.0.01,3]octadecane-5,13,17-trione


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