Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 67, Issue 1, Pages 146-153Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo015836e
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Dinucleoside polyphosphates are ubiquitous compounds tightly involved in the regulation of a number of key biological processes. Hydrolysis-resistant analogues of Ap(3)A and Gp(3)G, two important members of that family of nucleotides, have been synthesized. P-1,P-2.:P-2,P-3-Bis-methylene diadenosine and diguanosine triphosphates were prepared from O,O-dialkyl methaneselenophosphonates using an original methodology. Whereas the 2-fold addition of the methanephosphonate anion to the activated phosphorus species cannot be performed, multiple condensation of lithiated methaneselenophosphonate with electrophilic trivalent phosphorus compounds is revealed to be very effective. A one-pot condensation/esterification/oxidation sequence involving O,O-dialkyl methaneselenophosphonates provides a highly efficient route to the PCH2PCH2P backbone. This new development in selenophosphonate chemistry offers a great potential for further regioselective functionalization of polyphosphate mimics.
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