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[4-(Dimethylamino)-2-[[(2R,3R,7R,8R,11R,12S,13S,14R,17R)-1-hydroxy-12-[4-methoxy-4,6-dimethyl-5-(2,2,2-trichloroethoxycarbonyloxy)oxan-2-yl]oxy-2,7,11,13,15,17-hexamethyl-5,10-dioxo-8-propyl-4,6,9,18-tetraoxatricyclo[13.2.1.03,7]octadecan-14-yl]oxy]-6-met


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