M. Paris et al., SYNTHESIS OF N-PROTECTED GAMMA-AMINO-BETA-KETO-ESTERS FROM URETHANE N-CARBOXYANHYDRIDES (UNCAS), Tetrahedron letters, 37(47), 1996, pp. 8489-8492
N-protected gamma-amino-beta-keto-esters were synthesized from the cor
responding N-protected N-carboxyanhydride (UNCAs) by reaction with the
lithium enolate of ethyl acetate in good yields. These compounds are
precursors of statine derivatives. Copyright (C) 1996 Elsevier Science
Ltd