221319-66-0Relevant articles and documents
Ex-chiral pool synthesis of aminooxazepinones as conformationally restricted β-amino acid analogs
Michel, Dorothee,Waibel, Reiner,Gmeiner, Peter
, p. 365 - 372 (2007/10/03)
Starting from natural asparagine, an efficient synthesis of the dibenzyl protected 6-amino-1,3-oxazepin-4-one (7) is reported. According to NMR based conformational studies, the lactam-bridged β-amino acid analog (7) adopts preferentially a twisted boat s