New Approach to the Coupling of γ-Amino β-Hydroxy Acids and β,γ-Dihydroxy Acids with α-Amino Acid Esters
摘要:
alpha,alpha-Dichloro beta-lactones, readily obtained by a highly diastereoselective cycloaddition of dichloroketene to N-Boc-alpha-amino aldehydes and alpha-(silyloxy) aldehydes, coupled efficiently with alpha-amino acid esters leading, after dehalogenation with H-2 over 10% Pd on charcoal, to peptide mimics under mild reaction conditions.
Diastereoselective [2 + 2] cycloaddition of dichloroketene with α-oxyaldehydes and α-amino aldehydes
作者:Claudio Palomo、José Ignacio Miranda、Carmen Cuevas、José Manuel Odriozola
DOI:10.1039/c39950001735
日期:——
A new route to natural products containing 1,2-diol and 1,2-amino alcohol subunits based on the [2 + 2] cycloaddition of dichloroketene to α-oxyaldehydes and α-amino aldehydes is demonstrated.
New Approach to the Coupling of γ-Amino β-Hydroxy Acids and β,γ-Dihydroxy Acids with α-Amino Acid Esters
作者:Claudio Palomo、José I. Miranda、Anthony Linden
DOI:10.1021/jo961219s
日期:1996.1.1
alpha,alpha-Dichloro beta-lactones, readily obtained by a highly diastereoselective cycloaddition of dichloroketene to N-Boc-alpha-amino aldehydes and alpha-(silyloxy) aldehydes, coupled efficiently with alpha-amino acid esters leading, after dehalogenation with H-2 over 10% Pd on charcoal, to peptide mimics under mild reaction conditions.