Three short syntheses of the title compound, a peptidomimetic for the Glu-G
lu-Ile-NH2 portion of Ac-pTyr-Glu-Glu-Ile-NH2, a high affinity peptide for
the Src SH2 domain, are described. The most efficient route produces the ti
tle compound in a final enantiopurity of 94% ee. (C) 1999 Elsevier Science
Ltd. All rights reserved.