Novel Base-Labile Protecting Groups for 5′-Hydroxy Function in Solid-Phase Oligonucleotide Synthesis
2004
Abstract The 6-(levulinyloxymethyl)-3-methoxy-2-nitrobenzoyl (LMMoNBz) and 2-(levulinyloxymethyl)-5-methoxy-4-nitrobenzoyl (LMMpNBz) groups were developed as novel base-labile protection for the 5′-hydroxy function in solid-phase oligonucleotide synthesis. A comparative study of the LMMoNBz, LMMpNBz and 2-(levulinyloxymethyl)-5-nitrobenzoyl (LMNBz) protecting groups for oligonucleotide synthesis proved strong feasibility for the LMMoNBz group.
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