EB-0176 is a potent inhibitor of ER α-glucosidases (α-Glu) Iand II with IC50s of 0.6439 and 0.0011 μM, respectively. EB-0176 is a N-substituted derivative of valiolamine with broad-spectrum antiviral. EB-0176 has the potential for the reseach of broad-spectrum agent against the existing and emerging viruses[1].