In. Lisichkina et al., COMPLEXATION AND HYDROGENATION OF METHIONINE-CONTAINING N-ACETYLE-DEHYDRODIPEPTIDES, Russian chemical bulletin, 43(3), 1994, pp. 505-506
The hydrogenation of the Fe-II complex of N-Ac-Delta Phe-(S)- or -(R)-
Met over a Pd/C catalyst affords mainly N-Ac-(R)-Phe-(S)-Met or N-Ac-(
S)-Phe-(R)-Met, correspondingly. In the reaction of mixed dipeptide co
mplexes with Ca-II and Fe-II the predominance of one of the diastereom
ers increases from 26 % (for complexes with Fe ions) to 38 %.