Acta Cryst. (2008). E64, o2294  [ doi:10.1107/S1600536808036106 ]

tert-Butyl 4-carbamoyl-3-methoxyimino-4-methylpiperidine-1-carboxylate

J. Wang, M. Liu, J. Cao and Y. Wang

Abstract: The title compound, C₁₃H₂₃N₃O₄, was prepared starting from ethyl N-benzyl-3-oxopiperidine-4-carboxylate through a nine-step reaction, including hydrogenation, Boc (tert-butoxycarbonyl) protection, methylation, oximation, hydrolysis, esterification and ammonolysis. In the crystal structure, molecules are linked by intermolecular N-HO hydrogen bonds to form a porous three-dimensional network with solvent-free hydrophobic channels extending along the c axis.

Online 8 November 2008

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