Synthesis of the cyclic heptapeptide Substance P antagonist, dihydro-WIN67689 and determination of the stereochemistry of the modified tyrosine moiety
作者:Yuan-Qiang Li、Kenji Sugase、Masaji Ishiguro
DOI:10.1016/s0040-4039(99)01930-9
日期:1999.12
The total synthesis of semi-synthetic cyclic heptapeptide dihydro-WIN67689, a Substance P antagonist 70 times more potent than the naturally occurring cyclic peptide WIN66306, established the stereochemistry of the beta-OH group in the isoprenyltyrosine moiety in I-III as R. (C) 1999 Elsevier Science Ltd. All rights reserved.
First syntheses of (2S, 3S)- and (2S, 3R)-m-prenyl-β-hydroxytyrosine derivatives: Bioactive amino acid fragment of a substance P antagonist novel cyclic heptapeptide
作者:Jalluri S. Ravi Kumar、Apurba Datta
DOI:10.1016/s0040-4039(96)02298-8
日期:1997.1
A stereodefined synthesis of both the C-3 isomers of the title tyrosine related new amino acid 3 has been achieved starting from D-serine and 4-bromophenol.