Acta Cryst. (2005). E61, o2579-o2581  [ doi:10.1107/S1600536805022130 ]

6-Acetoxy-4,5-epoxy-3-methoxy-17-methylmorphin-7-ene

V. N. Sonar, S. Parkin and P. A. Crooks

Abstract: Crystals of the title compound, which is also commonly known as 6-O-acetylcodeine, C₂₀H₂₃NO₄, were obtained by acetylation of codeine and subsequent crystallization of the product from ethyl acetate. The atoms of the benzene ring are nearly coplanar, whereas the five-memberedring is distorted. The ethanamine ring has a typical chair form conformation, while the cyclohexene ring is in a twisted boat form.

Online 16 July 2005

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