6_Productive Asymmetric Synthesis of All Four Diastereomers of 3-(trans-2-Nitrocyclopropyl)alanine from Glycine with (S)- or (R)-2-[(N-Benzylprolyl)amino]benzophenone as a Reusable Chiral Auxiliary.

Productive Asymmetric Synthesis of All Four Diastereomers of 3-(trans-2-Nitrocyclopropyl)alanine from Glycine with (S)- or (R)-2-[(N-Benzylprolyl)amino]benzophenone as a Reusable Chiral Auxiliary. Larionov, O. V.; Savel’eva, T. F.; Kochetkov, K. A.; Ikonnikov, N. S.; Kozhushkov, S. I.; Yufit, D. S.; Howard, J. A. K.; Khrustalev, V. N.; Belokon, Y. N.; de Meijere, A. Eur. J. Org. Chem. 2003, 869–877.