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Acta Cryst. (2013). E69, o550
[ doi:10.1107/S1600536813006880 ]


Y.-L. Zhang and Y.-M. Hu

Abstract: In the title compound, C31H30N2O, the cis-fused cyclohexene and cyclooctane rings adopt boat and boat-chair conformations, respectively. The essentially planar five-membered N-heterocyclic ring [r.m.s. deviation = 0.017 (1) Å] is cis- and trans-fused, respectively, with the cyclohexene and cyclooctane rings. In the crystal, molecules are linked into inversion dimers through pairs of weak C-H...O interactions.

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