Acta Cryst. (2007). E63, o3941  [ doi:10.1107/S1600536807038731 ]

(4'S)-4'-Ethyl-3',10'-dioxo-3',4',7',8'-tetrahydrospiro[1,3-dioxolane-2,6'-1'H,6'H-pyrano[3,4-f]indolizin]-4'-yl N-(1-phenylethyl)carbamate

Y. Bao, F.-E. Chen and M.-Q. Chen

Abstract: The title compound, C₂₄H₂₆N₂O₇, is an intermediate in the resolution of a tertiary alcohol using a chiral isocyanate reagent. On the basis of the unchanging S configuration of the chiral C atom introduced by the isocyanate reagent, the chiral centre on the tricyclo ring system is shown to adopt an S configuration. In the crystal structure, N-HO hydrogen bonds link the molecules into chains.

Online 1 September 2007

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