Acta Cryst. (2009). E65, o256  [ doi:10.1107/S1600536808044255 ]

tert-Butyl 3-[N-(tert-butoxycarbonyl)methylamino]-4-methoxyimino-3-methylpiperidine-1-carboxylate

Z. Wan, Y. Chai, M. Liu and H. Guo

Abstract: The title compound, C₁₈H₃₃N₃O₅, was prepared from N-tert-butoxycarbonyl-4-piperidone using a nine-step reaction, including condensation, methylation, oximation, hydrolysis, esterification, ammonolysis, Hoffmann degradation, tert-butoxycarbonyl protection and methylation. The E configuration of the methyloxime geometry of the compound is confirmed.

Online 8 January 2009

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