Compounds and oligomeric compounds comprising novel nucleobases
申请人:——
公开号:US20040033973A1
公开(公告)日:2004-02-19
The present invention relates to nucleoside compositions comprising novel nucleobases and oligomeric compounds comprising at least one such nucleoside. These oligomeric compounds typically have enhanced binding affinity properties compared to oligomeric compounds without the modification. The oligomeric compounds are useful, for example, for investigative and therapeutic purposes.
[EN] TRICYCLO-DNA NUCLEOSIDE PRECURSORS AND PROCESSES FOR PREPARING THE SAME<br/>[FR] PRÉCURSEURS NUCLÉOSIDIQUES TRICYCLO-ADN ET PROCÉDÉS DE PRÉPARATION ASSOCIÉS
申请人:SYNTHENA AG
公开号:WO2019142135A1
公开(公告)日:2019-07-25
The present invention relates to a process for preparing tc-DNA nucleoside precursors, the resulting tc-DNA nucleosides, and oligonucleotides comprising such tc-DNA nucleosides. In an embodiment of the invention, the process includes use of a carbene precursor. In an embodiment, the invention includes processes for preparing a tc-DNA nucleoside precursor of Formula (I), Formula (II), Formula (III), Formula (IV), Formula (V) or Formula (VI).
[EN] TRICYCLIC NUCLEOSIDES AND OLIGOMERIC COMPOUNDS PREPARED THEREFROM<br/>[FR] NUCLÉOSIDES TRICYCLIQUES ET COMPOSÉS OLIGOMÈRES PRÉPARÉS À PARTIR DE CEUX-CI
申请人:UNIVERSITÄT BERN
公开号:WO2014140348A1
公开(公告)日:2014-09-18
The present invention provides fluorine substituted tricyclic nucleosides of formula (I) wherein: the substituents are as defined in the claims. The present invention further provides oligomeric compounds prepared therefrom. Incorporation of one or more of the tricyclic nucleosides into an oligomeric compound enhances one or more properties of the oligomeric compound. Such oligomeric compounds can also be included in double stranded compositions.
Synthesis and Pairing Properties of α-Tricyclo-DNA
作者:Simon P. Scheidegger、Christian J. Leumann
DOI:10.1002/chem.200600597
日期:2006.10.25
base-pairing properties with complementary parallel and antiparallel oriented DNA and RNA were studied by UV-melting analysis and CD spectroscopy. We found that alpha-tc-DNA binds preferentially to parallel nucleic acid complements through Watson-Crick duplex formation, with a preference for RNA over DNA. In comparison with natural DNA, alpha-tc-DNA shows equal to enhanced affinity to RNA and also pairs to antiparallel
2′-Fluorination of Tricyclo-DNA Controls Furanose Conformation and Increases RNA Affinity
作者:Alena Istrate、Michal Medvecky、Christian J. Leumann
DOI:10.1021/acs.orglett.5b00662
日期:2015.4.17
The synthesis of 2'-fluoro tricyclo-DNA pyrimidine nucleosides with fluorine in the ribo-configuration and their incorporation into oligodeoxynucleotides was accomplished. Unlike the parent tc-T nucleoside, the 2'F-RNA-tc-T unit occurs in the 2'-exo conformation in the crystal. Specifically, F-RNA-tc-T was found to stabilize duplexes with RNA by +2 to +4 degrees C in T-m/mod. F-RNA-tc-nucleosides mix well with the DNA backbone and thus open up possibilities of using shorter and mixed-(DNA/tc-DNA) backbone oligonucleotides for therapeutic applications.