Spectroscopic and crystallographic data for the title compound (4S,5R)-4-amino-5-methyl-3-isoxazolidinone are reported. The title compound crystallizes with one half equivalent of water in a zwitterionic structure, C4H8N2O2.0.5H(2)O, stabilized by intermolecular hydrogen bonds.
Synthesen des 4-Amino-3-isoxazolidinons (Cycloserin) und einiger Analoga
Stereospecific syntheses of cycloserine (D-4-amino-3-isoxazolidinone) are described. The same synthetic methods lead to some 5-substituted 4-amino-3-isoxazolidinones. The stereochemical relationship of these compounds to the parent amino acids is discussed.