Acta Cryst. (2004). E60, o1820-o1822  [ doi:10.1107/S1600536804022494 ]

(2S,3R,4R,5S)-3,4-O-Isopropylidene-2-methyl-1-oxa-6,9-diazaspiro[4.5]decane-7,10-dione

D. J. Watkin, M. Müller, Y. Blèriot, M. I. Simone and G. W. J. Fleet

Abstract: The title spirocarbopeptoid, C₁₁H₁₃N₂O₅, was prepared from L-fucose in a sequence that gave this and another anomer. The crystal structure determination removes ambiguities in the synthetic sequence.

Online 25 September 2004

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