N2-Isobutyryl-2-O-methylguanosine

N2-Isobutyryl-2-O-methylguanosine (CAS No.: 63264-29-9) is a chemically modified purine nucleoside derivative belonging to the class of 2′-O-modified ribonucleosides, widely utilized as a key intermediate in nucleic acid chemistry and synthetic oligoribonucleotide production. This compound serves as an important monomer in the preparation of 2′-O-methyl-modified RNA and antisense oligonucleotides, where its incorporation enhances duplex stability with complementary RNA strands and confers increased resistance to nuclease-mediated degradation. Functionally, such modifications are known to influence RNA structure, hybridization affinity, and enzymatic processing, making this molecule valuable for investigating RNA-mediated regulatory mechanisms, including pre-mRNA splicing, RNA interference, and RNA-protein interactions. As a nucleoside analog, it is also relevant in studies examining the broader biochemical effects of purine derivatives on nucleic acid synthesis, where related compounds have been shown to interfere with DNA and RNA polymerase activity and modulate apoptosis-related pathways in cellular models, typically within nanomolar to micromolar concentration ranges depending on the experimental system. N2-Isobutyryl-2-O-methylguanosine is therefore primarily employed in molecular biology research, including the design of RNA probes, development of chemically modified RNA therapeutics for preclinical investigation, and mechanistic studies of nucleic acid function, with experimental conditions and dosing tailored to specific assay requirements.