Acta Cryst. (2009). E65, o987  [ doi:10.1107/S1600536809011969 ]

11,17,21-Trihydroxy-6-methyl-3,20-dioxopregna-1,4-dien-21-yl 3-carboxypropionate

H.-M. An, N.-B. Gong and Y. Lu

Abstract: The molecule of the title compound, C₂₆H₃₄O₈, a prednisolone derivative, contains three six-membered rings (A, B and C) and one five-membered ring (D). Ring A is planar and rings B and C adopt chair conformations, while ring D adopts an envelope conformation with the C atom bonded to the methyl group at the flap. The crystal structure is stabilized by intermolecular O-HO hydrogen bonds

Online 8 April 2009

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