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<2R,3R,4S,5S,1(R*),2(S*)>-4-(4-bromobenzyloxy)-1-methyl-3-<7-<5-<7-(2,4-dinitrophenylamino)-1,3-dimethyl-2-methoxy-3(E),5(E)-heptadienyl>-3,4-dihydroxytetrahydro-2-furyl>-2-methyl-1-oxo-2(E),4(E),6(E)-heptatrienyl>-2(1H)-pyridone