Design, synthesis and biological evaluation of aryl-substituted sialyl Lewis X mimetics prepared via cross-metathesis of C-fucopeptides

Several aryl substituted C-fucopeptides have been developed as sialyl Lewis X mimetics. Although the compounds have a much simpler structure compared to SLe(x), up to 3-times higher binding affinity toward E-selectin and > 10 00 times toward P-selectin was observed. Furthermore, a convenient strategy for generating a number of analogues from a SLe(x) mimetic template at a v ery late stage of the synthesis was introduced, using a ruthenium catalyzed cross olefin metathesis under benchtop conditions. (C) 1999 Elsevier Scien ce Ltd. All rights reserved.