Synthesis of Selenium-Derivatized Cytidine and Oligonucleotides for X-ray Crystallography Using MAD
作者:Yuri Buzin、Nicolas Carrasco、Zhen Huang
DOI:10.1021/ol0365077
日期:2004.4.1
Synthesis of the novel 2'-Se-cytidine phosphoramidite was achieved via transformation of the uridine analogue to the cytidine derivative in high yield. This 2'-Se-cytidine phosphoramidite was used to synthesize selenium-derivatized DNA and RNA oligonucleotides for X-ray crystallography using MAD. The nucleotide coupling yield using this novel phosphoramidite was over 99% when 5-benzylmercaptotetrazole (5-BMT) was used as the coupling reagent.