256224-02-9Relevant articles and documents
An improved process for the manufacture of 5′-O-(4,4′-dimethoxytrityl)-N2-isobutyryl-2′-O-(2-methoxyethyl)guanosine
McPherson, Andrew K.,Capaldi, Daniel,Chen, Lijian,Olsen, Philip
, p. 2583 - 2590 (2020/12/29)
A revised, optimized process for the manufacture of 5′-O-(4,4′-dimethoxytrityl)-N2-isobutyryl-2′-O-(2- methoxyethyl)guanosine (MOE G PNS) that controls critical impurities to less than 0.2% was developed. The 2′-O-alkylation of 2,6-diaminopurine riboside
A 3' - oxygen - methoxy ethyl nucleoside preparation method (by machine translation)
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Paragraph 0133-0137, (2018/09/11)
The invention discloses a 3' - oxygen - methoxy ethyl nucleoside of the preparation method. The method includes the steps of: (1) the structure of the compound represented by the formula B with the silanized protection base by condensation to obtain the structure of a compound represented by the formula C; the base selected from thymine, 5 - methyl cytosine, adenine or 2, 6 - II aminopurine; and (2) the structure of the compound is shown as formula C by alkaline hydrolysis reaction to obtain the structure shown in formula A 3' - oxygen - methoxy ethyl nucleoside. (by machine translation)
Process research on the preparation of DMT protected 2′-O- methoxyethylguanosine for oligonucleotide synthesis in therapeutic applications
Taj, Shabbir Ali S.,Narayanan,Meenakshi, S. Suman,Sanghvi, Yogesh S.,Ross, Bruce S.,Ravikumar, Vasulinga T.
, p. 1024 - 1033 (2008/12/22)
An optimized process to synthesize DMT protected 2′-O- methoxyethylguanosine is described. A key step involves the enzymatic deamination of a mixture of alkylated products to selectively afford the desired material without resorting to chromatography for purification. This approach was scaled up to kilogram quantities for use in oligonucleotide therapeutics. Copyright Taylor & Francis Group, LLC.
Synthesis study of 2′-O-(2-methoxyethyl)-purine derivatives
Sivets, Grigorii G.
, p. 1237 - 1240 (2008/09/18)
Alkylation of adenosine and 2-aminoadenosine was studied in dimethylsulfoxide with application of 1-methanesulfonyloxy-2-methoxyethane as an alkylating agent and t-BuOK, KOH and NaH as bases under mild heating. Using new reaction conditions, the improved synthesis of 2′-O-MOE-purine derivatives is described. Copyright Taylor & Francis Group, LLC.