Acta Cryst. (2006). E62, o540-o541  [ doi:10.1107/S1600536805034392 ]

(3aR,5R,7S,7aS)-5-[(tert-Butyldimethylsilyloxy)methyl]-7-ethoxy-3-methyl-7,7a-dihydro-3aH-pyrano[4,3-d]isoxazol-4(5H)-one

L. Cottier, R. M. Srivastava, D. Sinou, J. R. de Freitas Filho and E. Jeanneau

Abstract: The title compound, C₁₆H₂₉NO₅Si, is a unique heterocyclic compound where the 3-methyl-4,5-dihydroisoxazole (3-methyl-²-isoxazoline) ring has a tetrahydropyran-4-one group fused to the five-membered heterocyclic ring. This bicyclic heterocycle has four asymmetric centers with well defined configurations at all stereocenters.

Online 11 January 2006

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