title: 1,2-Bis[(3,6,9-trimethyl-3,12-ep-oxy-3,4,5,5a,6,7,8,8a,9,10,12,12a-dodeca-hydro-pyrano[4,3-j][1,2]benzodioxepin-4-yl)-oxy]ethane.
abstract: The title compound, C(32)H(50)O(10), prepared from a mixture of α- and β-dihydro-artemisinin, has two β-arteether moieties linked via an -OCH(2)CH(2)O- bridge, so that the mol-ecule is symmetric about the bridge. Each asymmetric unit contains a β-arteether moiety and an -OCH(2) group, which is only one-half of the mol-ecule. 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.
authors.forename: Liwei
authors.initials: L
authors.lastname: Jia
authors.forename: Zhengyu
authors.initials: Z
authors.lastname: Yue
authors.forename: Dongying
authors.initials: D
authors.lastname: Lv
authors.forename: Po
authors.initials: P
authors.lastname: Gao