6-(Levulinyloxymethyl)-3-methoxy-2-nitrobenzoyl and 2-(Levulinyloxymethyl)-5-methoxy-4-nitrobenzoyl Groups as Novel Base-Labile Groups for 5′-Hydroxy Protection in Solid-Phase Oligonucleotide Synthesis
摘要:
The 6-(levulinyloxymethyl)-3-methoxy-2-nitrobenzoyl (LMMoNBz) and 2-(levulinyloxymethyl)-5-methoxy-4-nitrobenzoyl (LMMpNBz) groups were developed as novel base-labile groups for 5'-hydroxy protection in solid-phase oligonucleotide synthesis. A comparative study of the utility of LMMoNBz, LMMpNBz, and 2-(levulinyloxymethyl)-5-nitrobenzoyl (LMNBz) groups is described.