Ag. Myers et al., A ONE-STEP SYNTHESIS OF PSEUDOEPHEDRINE GLYCINAMIDE, A VERSATILE PRECURSOR FOR THE SYNTHESIS OF ALPHA-AMINO-ACIDS, Tetrahedron letters, 36(26), 1995, pp. 4555-4558
Both enantiomers of pseudoephedrine glycinamide [(+)- or (-)-1] were s
ynthesized by either of two procedures: (1) a standard two-step coupli
ng of N-Boc-Gly with pseudoephedrine followed by deprotection, or (2)
a more economical one-step coupling reaction of Gly-OMe with pseudoeph
edrine mediated by LiCl and base.