A Convenient High Yield Synthesis of N<sup>4</sup>-Isobutyryl-2′-O-Methylcytidine and Its Monomer Units For Incorporation into Oligonucleotides
作者:Morteza M. Vaghefi、Richard I. Hogrefe
DOI:10.1080/07328319308016200
日期:1993.12
We designed an efficient three step procedure for the synthesis of N-4-isobutyryl-2'-O-methylcytidine. This protected nucleoside was then used to prepare a methylphosphonamidite monomer for incorporation into oligonucleotides. Transamination at the C-4 position of cytidine using ethylenediamine, which has been reported for the N-4-benzoyl cytidine, was not observed with N-4-isobutyryl protected 2'-O-methylcytidine