Jy. Lee et al., SYNTHESIS OF HEXAPEPTIDE AND TETRAPEPTIDE ANALOGS OF THE IMMUNOMODULATING PEPTIDES, Journal of the Chemical Society. Perkin transactions. I, (2), 1998, pp. 359-365
Two hexapeptide and two tetrapeptide analogues of the bioactive hexape
ptides [(Trp/Met/Phe)-Lys-Tyr-(Met/Val)-(Pro/Val)-Met] have been synth
esized by incorporating novel peptide isosteres such as 2-isoxazoline,
(E)-alkene, and reduced amide isosteres, These immunomodulating hexap
eptides are known to stimulate the formation of inositol phosphates in
lymphocyte cell lines.