[EN] COMPOUNDS, COMPOSITIONS AND METHODS FOR SYNTHESIS<br/>[FR] COMPOSÉS, COMPOSITIONS ET PROCÉDÉS DE SYNTHÈSE
申请人:WAVE LIFE SCIENCES LTD
公开号:WO2018237194A1
公开(公告)日:2018-12-27
The present disclosure, among other things, provides technologies for synthesis, including reagents and methods for stereoselective synthesis. In some embodiments, the present disclosure provides compounds useful as chiral auxiliaries. In some embodiments, the present disclosure provides reagents and methods for oligonucleotide synthesis. In some embodiments, the present disclosure provides reagents and methods for chirally controlled preparation of oligonucleotides. In some embodiments, technologies of the present disclosure are particularly useful for constructing challenging internucleotidic linkages, providing high yields and stereoselectivity.
PROBLEM TO BE SOLVED: To provide prodrugs of stereodefined oligonucleotides to impart additional stability to oligonucleotide molecules in many in-vitro and in-vivo applications.SOLUTION: A nucleic acid prodrug has a structure represented by the formula (1), where each instance of Ba is independently a blocked or unblocked adenine, cytosine, guanine, thymine, uracil or modified nucleobase.
Chiral auxiliaries useful for efficiently producing a phosphorus atom-modified nucleic acid derivative with high stereoregularity, and compounds represented by the following the general formula (I) or the general formula (XI) for introducing the chiral auxiliaries.
[EN] PHOSPHORAMIDITE SYNTHESIS ON-DEMAND<br/>[FR] SYNTHÈSE DE PHOSPHORAMIDITE À LA DEMANDE
申请人:UNIV AARHUS
公开号:WO2022013393A1
公开(公告)日:2022-01-20
A process for synthesizing phosphoramidites by immobilizing a phosphitylating agent on an activated resin to create a loaded resin and then bringing the loaded resin into contact with a suitable substrate. The phosphoramidites are synthesized within minutes from applying the starting materials. Thus, the process makes it possible to create specific phosphoramidites on-demand as they are needed in further applications. The substrates to be applied are mostly nucleosides, thus to create nucleoside phosphoramidites for subsequent oligonucleotide synthesis.
The present invention relates to chirally controlled oligonucleotides, chirally controlled oligonucleotide compositions, and the method of making and using the same. The invention specifically encompasses the identification of the source of certain problems with prior methodologies for preparing chiral oligonucleotides, including problems that prohibit preparation of fully chirally controlled compositions, particularly compositions comprising a plurality of oligonucleotide types. In some embodiments, the present invention provides chirally controlled oligonucleotide compositions. In some embodiments, the present invention provides methods of making chirally controlled oligonucleotides and chirally controlled oligonucleotide compositions.