Membrane Receptor Probes: Solid-Phase Synthesis of Biotin-Asp-PEG-arvanil Derivatives
作者:Cristina Visintin、Abil E. Aliev、Dieter Riddall、David Baker、Masahiro Okuyama、Pui Man Hoi、Robin Hiley、David L. Selwood
DOI:10.1021/ol0502578
日期:2005.4.1
solid-phase synthetic route for the preparation of biotinylated cross-linking probes of membrane receptors is described. The route utilizes an orthogonal protection strategy employing a Pd[0] cleavable allyl linker attached to the probe via an aspartate residue. The versatility of the method is illustrated through the synthesis of a number of arvanil-derived cannabinoid receptor ligands displaying either
t-Butyl 6-bromo-(E)-4-hexenoate was used as a handle for the solid-phasesynthesis of glycopeptides. The handle was first conjugated with Fmoc amino acids to form the allyl esters, which were then attached to the Sieber amide resin via acidic cleavage of the t-butyl esters followed by activation of the liberated carboxylic acids. Solid-phasesynthesis was demonstrated for the glycopeptide oligomers modeled