Methyl 4-amino-3-methoxyisoxazole-5-carboxylate

Abstract

The title compound, C6H8N2O4, a new derivative of isoxazole, has been synthesized and structurally characterized. The crystal structure shows the molecule to be almost planar (r.m.s. deviation for the non-hydrogen atoms = 0.029 Å), this conformation being supported by an intramolecular N—H...O hydrogen bond. In the extended structure, the molecules are linked by N—H...O hydrogen bonds into chains propagating along [010].