Advances in RNA Labeling with Trifluoromethyl Groups
作者:Clemens Eichler、Maximilian Himmelstoß、Raphael Plangger、Leonie I. Weber、Markus Hartl、Christoph Kreutz、Ronald Micura
DOI:10.1002/chem.202302220
日期:2023.10.26
the set of 2′-OCF3 nucleoside phosphoramidites to all four standard nucleobases and enables advanced NMR spectroscopic and cellular applications that utilize the favorable properties of the 2′-OCF3 group without any RNA sequence restrictions.
Fast and Reliable Automated Synthesis of RNA and Partially 2′-O- Protected Precursors (`Caged RNA') Based on Two Novel, Orthogonal 2′-O-Protecting Groups, Preliminary Communication
作者:Stefan Pitsch、Patrick A. Weiss、Xiaolin Wu、Damian Ackermann、Thomas Honegger
Two sets of RNA phosphoramidites. carrying the (fluoride-labile) 2'-O-[(triisopropylsilyl)oxy]methyl (=tom) group and the (photolabile) [(R)-1-(2-nitrophenyl)ethoxy]methyl (=(R)-npeom) group, were prepared (see 1-4 and 5-8, resp.). The two protecting groups were completely orthogonal to each other. Three ribozyme-substrate constructs, protected each by a (R)-npeom group, were synthesized; on photolysis, efficient cleavage of this remaining protecting group occurred (Scheme 3). It could be demonstrated that the presence of one (R)-npeom group within a RNA strand has only a minor influence on the pairing properties of corresponding duplexes.