organic compounds
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The title compound, C32H50O10, prepared from a mixture of α- and β-dihydroartemisinin, has two β-arteether moieties linked via an –OCH2CH2O– bridge, so that the molecule is symmetric about the bridge. Each asymmetric unit contains a β-arteether moiety and an –OCH2 group, which is only one-half of the molecule. The endo-peroxide bridges of the parent compounds have been retained in each half of the diol-bridged dimer. The rings exhibit chair and twist-boat conformations.