Succinyl-cycloSal-phosphate triesters of ribo- and 2'-deoxyribonucleosides were attached to aminomethyl polystyrene as an insoluble solid support and reacted with phosphate-containing nucleophiles yielding nucleoside di- and triphosphates, nucleoside diphosphate sugars, and dinucleoside polyphosphates in high purity after cleavage from the solid support. Here, reactive cycloSal-phosphate triesters were used as immobilized reagents that led to a generally applicable method for the efficient synthesis of phosphorylated biomolecules and phosphate-bridged bioconjugates.
A new synthesis for cycloSal-pronucleotides bearing enzymatically cleavable triggers is presented. This trigger is introduced to trap the pronucleotide inside cells. The general concept and hydrolysis data in different media are discussed.
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