Synthesis of methyl O-α-L-rhamnopyranosyl-(1 → 2)-α-d-galactopyranosides specifically deoxygenated at position 3, 4, or 6 of the galactose residue
作者:Laurence A. Mulard、Pavol Kovác̆、Cornelis P.J. Glaudemans
DOI:10.1016/0008-6215(94)84287-6
日期:1994.1
4-tri-O-benzoyl-alpha-L-rhamnopyranosyl bromide with suitably protected, deoxygenated derivatives of methyl alpha-D-galactopyranoside. Deoxygenation was achieved via activation of a protected methyl alpha-D-gluco- or galacto-pyranoside with N,N'-thiocarbonyldiimidazole followed by treatment with tributyltin hydride and azobisisobutyronitrile. At position 3, the deoxygenation was more successful when performed with
Synthesis and evaluation of 3″- and 4″-deoxy and -fluoro analogs of the immunostimulatory glycolipid, KRN7000
作者:Ravinder Raju、Bernard F. Castillo、Stewart K. Richardson、Meena Thakur、Ryan Severins、Mitchell Kronenberg、Amy R. Howell
DOI:10.1016/j.bmcl.2009.06.005
日期:2009.8
Four 3 ''- and 4 ''-deoxy and -fluorogalactosyl ceramides were synthesized, and their ability to stimulate iNKT cells, based on levels of IL-2 production, was assessed in three NKT cell receptor hybridomas. In two of the hybridomas, 1.2 and 2H4, all of the analogs were immunostimulatory, while in the 1.4 hybridoma only the 4 ''-fluoro analog led to the production of significant levels of IL-2. (C) 2009 Elsevier Ltd. All rights reserved.
Paulsen, Hans; Rutz, Volker; Brockhausen, Inka, Liebigs Annalen der Chemie, 1992, # 7, p. 747 - 758
作者:Paulsen, Hans、Rutz, Volker、Brockhausen, Inka
DOI:——
日期:——
NON-PEPTIDE PEPTIDOMIMETICS
申请人:THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA