New phosphorylation procedure. Activation of phosphates with cyclohexyl isocyanide
Abstract
Cyclohexyl isocyanide reacts with nucleoside 2′(3′)-phosphates to afford 2′,3′-cyclic phosphates or with a mixture of phosphomonoesters (viz., 2′,3′-di-O-acetyluridine 5′-phosphate or phenyl phosphate) and alcohols to give the corresponding phosphodiesters in ca. 90% yields.