Synthesis of α-l-Threose Nucleoside Phosphonates via Regioselective Sugar Protection
摘要:
A new synthesis route to a-L-threose nucleoside phosphonates via 2-O and 3-O selectively protected L-threose is developed. The key intermediates 2-O-benzoyl-L-threonolactone and 1-O-acetyl-2-O-benzoyl-3-O-t-butyldiphenylsilyl-L-threofuranose were functionalized to synthesize 2'-deoxy-2'-fluoro- and 3'-C-ethynyl L-threose 3'-O-phosphonate nucleosides. The key intermediates developed are important intermediates for the synthesis of new L-threose-based nucleoside analogues, TNA phosphoramidites, and TNA triphosphates.
Synthesis and polymerase incorporation of β,γ-modified α-l-threofuranosyl thymine triphosphate mimics
作者:Zhe Chen、Kirsten N. Meek、Alexandra E. Rangel、Jennifer M. Heemstra
DOI:10.1016/j.bmcl.2016.07.008
日期:2016.8
Three beta,gamma-modified alpha-l-threofuranosyl nucleoside triphosphates were synthesized. The beta,gamma-modified tTTPs undergo a single incorporation event with HIV RT but undergo multiple incorporations to form full-length product with engineered thermophilic polymerases.
A Scalable Synthesis of α-<scp>l</scp>-Threose Nucleic Acid Monomers
作者:Sujay P. Sau、Nour Eddine Fahmi、Jen-Yu. Liao、Saikat Bala、John C. Chaput
DOI:10.1021/acs.joc.5b02768
日期:2016.3.18
polymers composed of TNA (α-l-threofuranosyl-(3′,2′) nucleicacid). This property, coupled with enhanced nuclease stability relative to natural DNA and RNA, warrants further investigation into the structural and functional properties of TNA as an artificial genetic polymer for synthetic biology. Here, we report a highly optimized chemical synthesis protocol for constructing multigram quantities of TNA
Expanding the Horizon of the Xeno Nucleic Acid Space: Threose Nucleic Acids with Increased Information Storage
作者:Hannah Depmeier、Stephanie Kath-Schorr
DOI:10.1021/jacs.3c14626
日期:2024.3.20
successful enzymatic synthesis of TPT3-modified TNA, while the preparation of NaM-modified TNA presented greater challenges. This study marks the first enzymatic synthesis of TNA with an expanded genetic alphabet (exTNA), opening promising opportunities in nucleic acid therapeutics, particularly for the selection and evolution of nuclease-resistant, high-affinity aptamers with increased chemical diversity.