After 3 hours, the solvent was removed in vacuo and the residue purified by chromatography silica, PE EtOAc gradient elution, to give tert butyl 2 1H pyrazol 4 yl morpholine 4 carboxylate 2
ivermectin prezzo Tamoxifen was identified in a drug screen to have significant antiviral activity; this is likely secondary to off target effects, as the estrogen signaling pathway doesn t play a role in viral entry