Annamalai S, Muthian S, Kore AR. Efficient chemical synthesis of
N2-modified guanosine derivatives: a versatile probes for mRNA labeling.
Nucleosides Nucleotides Nucleic Acids 2023;
42:867-876. [PMID:
37211782 DOI:
10.1080/15257770.2023.2215828]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/12/2023] [Accepted: 05/13/2023] [Indexed: 05/23/2023]
Abstract
An efficient method for the synthesis of N2-modified guanosine nucleotides such as N2-[benzyl-N-(propyl)carbamate]-guanosine-5'-O-monophosphate, N2-[benzyl-N-(propyl)carbamate]-guanosine-5'-O-diphosphate, N2-[benzyl-N-(propyl)carbamate]-guanosine-5'-O-triphosphate, and N2-[benzyl-N-(propyl)carbamate]-N7-methyl-guanosine-5'-O-diphosphate, starting from the corresponding nucleotide is described. The overall reaction involves the condensation between the exocyclic amine of guanosine nucleotide with 3-[(benzyloxycarbonyl)amino]propionaldehyde in aqueous methanol, followed by reduction using sodium cyanoborohydride to furnish the corresponding N2-modified guanosine nucleotide in moderate yield with high purity (>99.5%).
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