[EN] DESIGN AND SYNTHESIS OF NOVEL DISULFIDE LINKER BASED NUCLEOTIDES AS REVERSIBLE TERMINATORS FOR DNA SEQUENCING BY SYNTHESIS<br/>[FR] DÉRIVÉS NUCLÉOTIDIQUES ET LEURS MÉTHODES D'UTILISATION
申请人:UNIV COLUMBIA
公开号:WO2017058953A1
公开(公告)日:2017-04-06
Disclosed herein, inter alia, are compounds, compositions, and methods of use thereof in the sequencing a nucleic acid.
在此披露的内容包括化合物、组合物以及它们在核酸测序中的使用方法。
METHOD FOR DETACHING PROTECTING GROUP ON NUCLEIC ACID
申请人:Shiba Yoshinobu
公开号:US20090149645A1
公开(公告)日:2009-06-11
A method is provided for removing a 2-cyanoethoxymethyl (CEM) group and substituting the 2′-hydroxyl group of each ribose of an oligonucleic acid derivative with good reproducibility and high efficiency.
A process for preparing a glycoside compound represented by formula (3), which includes reacting a glycoside compound represented by formula (1) with an ether compound represented. by formula (2) in the presence of an. oxidizing agent and an acid to prepare a glycoside compound represented by formula (3),
where the oxidizing agent is added to a reaction system, followed by adding an acid thereto,
where B
a
represents a cytosine group which may be optionally substituted with acyl group, or an uracil group, R
1
represents a C1 to C6 alkyl group or a phenyl group, and n is 0 or 1, where an oxidizing agent is selected from N-halogenated succinimide and N-halogenated hydantoin, and an acid is selected from perfluoroalkylcarboxylic acid, alkylsulfonic acid, arylsulfonic acid, periluoroalkylsulfonic acid, and salts thereof, and any combinations thereof, which can provide a synthesis of a desired compound with high purity.
Synthesis of atom-specific nucleobase and ribose labeled uridine phosphoramidite for NMR analysis of large RNAs
作者:Lukasz T. Olenginski、Owen B. Becette、Serge L. Beaucage、Theodore K. Dayie
DOI:10.1007/s00706-021-02851-2
日期:2021.11
We describe the hybrid enzymatic and chemical synthesis of a 2′-O-cyanoethoxymethyl (CEM) [1′,6-13C2, 5-2H]-uridine phosphoramidite (amidite). This is the first report of an atom-specific nucleobase and ribose labeled CEM amidite. Importantly, the CEM 2′-OH protecting group permits the efficient solid-phase synthesis of large (> 60 nucleotides) RNAs with good yield and purity. Therefore, our isotope-labeled
RNAs (siRNAs); however, the chemical synthesis of long PB-oligoribonucleotides has not been achieved to date. This study reports the solid-phasesynthesis of oligouridine boranophosphates using the H-boranophosphonate monomer with a 2′-O-(2-cyanoethoxymethyl) (CEM) protecting group. As a result of various investigations, the conditions for the solid-phasesynthesis and removal of 2′-O-CEM groups were