Journal
NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS
Volume 24, Issue 5-7, Pages 589-593Publisher
TAYLOR & FRANCIS INC
DOI: 10.1081/NCN-200061911
Keywords
bisphosphonates; adenosine 5 '-tetraphosphate; nucleoside tetraphosphatase
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Funding
- FIC NIH HHS [1R03TW006446-01] Funding Source: Medline
- FOGARTY INTERNATIONAL CENTER [R03TW006446] Funding Source: NIH RePORTER
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A new methodology for synthesis of biologically important nucleoside tri- and tetraphosphates containing a bisphosphonate moiety instead of the terminal pyrophosphate bond is described The series consists of tri- and tetraphosphate analogs of adenosine, guanosine and 7-methylguanosine (characteristic for mRNA cap). We have adopted a two-step procedure that allowed us to insert a methylene bridge into the phosphate chain. Nucleoside mono- or diphosphates were first activated (as imidazole derivatives) and then used in coupling reactions with organic salts of bisphosphonate. The resulting synthetic method enabled us to obtain the desired compounds with high yields and does not require any protective groups. This makes it very useful for the synthesis of labile compounds such as those containing the 7-methylguanosine ring. The structures of the synthesized compounds were confirmed by NMR spectroscopy. They were tested as potential substrates and inhibitors of several hydrolases.
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