Synthesis of guanine a-carboxy nucleoside phosphonate (G-a-CNP), a direct inhibitor of multiple viral DNA polymerases

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Maguire, Nuala M.
Ford, Alan
Balzarini, Jan
Maguire, Anita R.
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American Chemical Society (ACS)
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The synthesis of guanine α-carboxy nucleoside phosphonate (G-α-CNP) is described. Two routes provide access to racemic G-α-CNP 9, one via base construction and the other utilizing Tsuji–Trost allylic substitution. The latter methodology was also applied to the enantiopure synthesis of both antipodes of G-α-CNP, each of which shows interesting antiviral DNA polymerase activity. Additionally, we report an improved multi-gram scale preparation of the cyclopentene building block 10, starting material for the preferred Tsuji–Trost route to 9.
Polymerase active site , DNA polymerase , Alpha-carboxy nucleoside phosphonate , Herpes virus , HIV , Reverse transcriptases
Maguire, N. M., Ford, A., Balzarini, J. and Maguire, A. R. (2018) 'Synthesis of Guanine α-Carboxy Nucleoside Phosphonate (G-α-CNP), a direct inhibitor of multiple viral DNA polymerases', The Journal of Organic Chemistry, In Press, doi:10.1021/acs.joc.8b01124
© American Chemical Society. This document is the Accepted Manuscript version of a Published Work that will appear in final form in The Journal of Organic Chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see