Facile Synthesis and Anti-Tumor Cell Activity of Se-Containing Nucleosides
作者:Lina Lin、Jia Sheng、Razin K. Momin、Quan Du、Zhen Huang
DOI:10.1080/15257770802581765
日期:2009.1.5
Many organic compounds containing selenium have shown anticancer effects and some have been used in chemoprevention of cancers and other diseases. Though Se-containing amino acids are generally used for these purposes, the natural nucleosides may also be used as Se-carriers for these important applications. Therefore, we describe here the convenient synthesis of the new 3'-MeSe-thymidine nucleoside and the other uridine and thymidine derivatives modified with MeSe at the 2' and 5' positions, and report their anti-tumor activity against prostate cancer cell lines. Our work demonstrates for the first time anticancer activity of the methylseleno nucleosides.
Synthesis of a 2‘-Se-uridine Phosphoramidite and Its Incorporation into Oligonucleotides for Structural Study
作者:Jozef Salon、Guexiong Chen、Yoani Portilla、Markus W. Germann、Zhen Huang
DOI:10.1021/ol052270y
日期:2005.12.1
[chemical reaction: see text]. We report here the synthesis of the 5'-[benzhydryloxybis(trimethylsilyloxy)]silyl-2'-methylseleno-2'-deoxyuridine phosphoramidite and its incorporation into oligonucleotides by solid-phase synthesis. The coupling yield of this phosphoramidite into oligonucleotides is higher than 99%. We also demonstrate that this 2'-methylselenophosphoramidite is compatible with the 5'-silyl-2'-ACE