Efficient Synthesis of Deoxyribonucleoside Phosphoramidites by Eliminating the Use of Additional Activator
摘要:
An efficient, safe and cost effective synthesis of deoxyribonucleoside phosphoramidites is described. The amine hydrochloride produced as a by-product during the synthesis of nucleoside phosphorbisamidite is used as an internal activator in the synthesis of phosphoramidites.
Improved methods for preparation of phosphoramidite compounds are disclosed. The phosphoramidites are useful, for example, for the preparation of oligonucleotides by solid state oligonucleotide synthetic regimes.