SialylLewisX (1) is known to be a ligand of the cell adhesion molecule E-selectin. We have synthesized several biantennary glycoside-terminated ligands mimicking sialylLewisX (1), and evaluated their binding activity to E-selectin using HL-60 cells expressing sialylLewisX epitope and human umbilical vein endothelial cells (HUVECs). These compounds were found to possess moderate binding activities