Benzyl-(1-((1-(bis(benzyloxy)phosphoryl)-1-hydroxypropan-2-yl)oxy)-3-hydroxy-2-(hydroxymethyl)propan-2-yl)carbamate is an intermediate in the synthesis of [2-[2-Amino-3-hydroxy-2-(hydroxymethyl)propoxy]-1-hydroxypropyl]phosphonic Acid (A611565), which is a Fosfomycin (F727500) impurity. Fosfomycin is an antibiotic that exerts a broad spectrum of antibacterial activity.