K. Burger et al., A new protection activation strategy for the synthesis of naturally occurring and non-natural alpha-N-alkylamino acids, AMINO ACIDS, 16(3-4), 1999, pp. 287-295
A new method for the preparation of N-methylamino acids and some of their d
erivatives starting from hexafluoroacetone protected amino acids is describ
ed. The new concept results in saving of steps compared to conventional pro
tection/activation techniques. Protection and deprotection proceed without
racemization.