Acta Cryst. (2007). E63, o3371  [ doi:10.1107/S1600536807031388 ]

(3R,3aS,6R,6aR)-tert-Butyl N-(6-chloro-2-oxo-6a-phenylperhydrofuro[3,2-b]furan-3-yl)carbamate

J. Erdsack, M. Schürmann, H. Preut and N. Krause

Abstract: The chiral title compound, C₁₇H₂₀ClNO₅, arose as a side product during the synthesis of novel furanomycin derivatives. The stereochemistry at the bicyclic core is consistent with a halolactonization step. The five-membered rings are nearly perpendicular to each other [torsion angle at the common bond: -88.3 (3)°].

Online 5 July 2007

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