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3a-bromoperhydro-2,6a-epoxyoxireno[e][2]benzofuran
(BLACKWELL PUBLISHING, 2007)
In the title compound, C8H9BrO3, the boat form of the six-membered ring is almost symmetrical with respect to the epoxy bridge. The two five-membered rings generated by the epoxy bridge of the six-membered ring adopt ...
tert-Butyl 3a-chloro-2-methylperhydro-2,6a-epoxy-oxireno[e] isoindole-5-carboxylate
(INT UNION CRYSTALLOGRAPHY, 2007)
In the title compound, C14H2OClNO4, the molecules are linked only by weak van der Waals interactions, and the three five-membered rings adopt envelope conformations.