Crystal structure of (+)-N-[(1R,5S,6S,9S)-5-hydroxymethyl-3,3,9-trimethyl-8-oxo-2,4,7-trioxabicyclo[4.3.0]nonan-9-yl]acetamide
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چکیده
In the title compound, C12H19NO6, the six-membered 1,3-dioxane ring adopts a chair-like conformation. The seat of this chair, containing two O atoms, is essentially planar, with a maximum deviation of 0.0021 (12) Å. The five-membered oxolane ring cis-fused to the 1,3-dioxane ring adopts an envelope form. The bridgehead C atom at the flap, which is bonded to the tetra-substituted C atom of the oxolane ring, deviates from the mean plane of other ring atoms by 0.539 (4) Å. In the crystal, classical O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into a sheet structure enclosing an R 4 (4)(24) graph-set motif. Weak inter-molecular C-H⋯O inter-actions support the sheet formation.
منابع مشابه
2,2-Dichloro-1-(3,3,6-trimethyl-9-oxo-1,5-diazabicyclo[4.3.0]nonan-5-yl)ethanone
In the title mol-ecule, C(12)H(18)Cl(2)N(2)O(2), the six-membered ring is in a chair conformation and the five-membered ring is in an envelope conformation. In the crystal, weak inter-molecular bifurcated (C-H)(2)⋯O hydrogen bonds connect mol-ecules into chains along [010].
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