Synthesis of conformationally constrained amino acid and peptide derivatives
作者:Bailey、Bannister、Bernad、Blanchard、Boa
DOI:10.1039/b108872f
日期:2001.12.11
6-Benzylpiperazine-2,3,5-trione 5, a cyclic phenylalanine derivative, can be selectively and sequentially alkylated at N4, C6 and N1 to provide a range of conformationallyconstrained phenylalanine mimetics. Alkylation at C6, the α-carbon of the phenylalanine moiety is achieved under mild conditions and gives rise to Phe derivatives posessing a dialkylated α-carbon. Alkylation of piperazine 5 using