Jj. Chruma et al., GENERAL-METHOD FOR THE SYNTHESIS OF N-METHYL AMINO-ACIDS AND N-ALKYL AMINO ESTERS FROM ODONNELL SCHIFF-BASES, Tetrahedron letters, 38(29), 1997, pp. 5085-5086
N-methyl amino acids, including L-abrine, and N-alkyl amino esters, we
re synthesized by reductive amination of O'Donnell's Schiff base amino
esters with NaBH3CN and formaldehyde, or the appropriate aldehyde in
CH3CN or THF in good to excellent yields, and with high purity. (C) 19
97 Elsevier Science Ltd.