First synthesis of fully modified 4'-selenoRNA and 2'-OMe-4'-selenoRNA based on the mechanistic considerations of an unexpected strand break.
First synthesis of fully modified 4'-selenoRNA and 2'-OMe-4'-selenoRNA based on the mechanistic considerations of an unexpected strand break.
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基于意外链断裂的机制考虑,首次合成完全修饰的 4-selenoRNA 和 2-OMe-4-selenoRNA。
DOI:
10.1021/ol502077h
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发表时间:
2014
期刊:
影响因子:
5.2
通讯作者:
A.; Minakawa,
中科院分区:
文献类型:
--
作者:
Tarashima;N.; Hayashi;K.; Terasaki;M.; Tanike;H.; Inagaki;Y.; Fukuda;Y.; Furukawa;K.; Matsuda;A.; Minakawa,
This study investigated oligonucleotide (ON) synthesis containing 4′-selenoribonucleoside(s) under standard phosphoramidite conditions. Careful operation using a manual ON synthetic system revealed that an unexpected strand break occurred to afford a C2-symmetric homodimer as a byproduct. In addition, this side reaction occurred during I2oxidation. On the basis of these findings, the first synthesis of fully modified 4′-selenoRNA and 2′-OMe-4′-selenoRNA was achieved usingtert-butyl hydroperoxide (TBHP) as the alternative oxidant.
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