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Acta Cryst. (2013). E69, o447
[ doi:10.1107/S1600536813005023 ]


Y.-B. Shen, Y.-B. Wang, J.-M. Luo and M. Wang

Abstract: The title molecule, C21H28O5, is composed of three six-membered rings (A/B/C) and a five-membered ring (D). Ring A adopts a 1[alpha]-sofa conformation, while rings B and C adopt chair conformations. Cyclopentane ring D adopts a 14[alpha]-envelope conformation. In the crystal, O-H...O hydrogen bonds lead to the formation of ribbons running along the a axis. The structure is further consolidated by C-H...O interactions, which link the molecules head-to-tail into ribbons along the a axis.

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