Studies on aryl H-phosphonates. I. An efficient method for the preparation of deoxyribo- and ribonucleoside 3′-H-phosphonate monoesters by transesterification of diphenyl H-phosphonate
A convenient method for the preparation of deoxyribonucleoside and ribonucleoside 3′-H-phosphonate monoesters via transesterification of diphenyl H-phosphonate with suitable protected nucleosides in pyridine is described.
A convenient synthesis of nucleoside 3′-H-phosphonate monoesters using triphosgene
作者:Nandkumar N. Bhongle、Jin Yan Tang
DOI:10.1016/0040-4039(95)01383-s
日期:1995.9
A SOLID SUPPORTED REAGENT FOR INTERNUCLEOSIDE <i>H</i>-PHOSPHONATE LINKAGE FORMATION
作者:Nikhil Mohe、Petri Heinonen、Yogesh S. Sanghvi、Roger Strömberg
DOI:10.1081/ncn-200059257
日期:2005.4.1
A fast and convenient procedure for synthesis of dinucleoside H-phosphonates is obtained through use of the novel polystyrene supported 5-carboxy-5-methyl-2-oxo- 2-chloro-1,3,2-dioxaphosphorinane reagent. Virtually quantitative H-phosphonate condensations are obtained leading to excellent isolated yields and with only a simple filtration as the purification procedure. This provides for a convenient and high-yielding procedure that should be suited for solution-phase synthesis of oligonucleotides.
Diastereomerically pure Rp and Sp dinucleoside H-phosphonates: the stereochemical course of their conversion into P-methylphosphonates, phosphorothioates, and [oxygen-18] chiral phosphates