Title: 9-[(2RS)-3-fluoro-2-phosphonylmethoxypropyl] derivatives of purines: a class of highly selective antiretroviral agents in vitro and in vivo
Authors: Balzarini, Jan ×
Holy, A
Jindrich, J
Dvorakova, H
Hao, Z
Snoeck, Robert
Herdewijn, Piet
Johns, D G
De Clercq, Erik #
Issue Date: Jun-1991
Host Document: Proceedings of the National Academy of Sciences of the United States of America vol:88 issue:11 pages:4961-4965
Abstract: A new class of compounds, 9-[(2RS)-3-fluoro-2-phosphonylmethoxypropyl] [(RS)-FPMP] derivatives of purines, is described that has selective activity against a broad spectrum of retroviruses [including human immunodeficiency virus type 1 (HIV-1) and type 2 (HIV-2)] but not other RNA or DNA viruses. This activity spectrum is completely different from that of the parental compounds, 9-[(2S)-3-hydroxy-2-phosphonylmethoxypropyl] [(S)-HPMP] derivatives of purines, which are active against a broad range of DNA viruses. The racemic (RS)-FPMP derivatives of adenine and 2,6-diaminopurine, termed (RS)-FPMPA and (RS)-FPMPDAP, respectively, are markedly more selective as in vitro antiretroviral agents than their 9-(2-phosphonylmethoxyethyl) (PME) counterparts, PMEA and PMEDAP. Also, (RS)-FPMPA and (RS)-FPMPDAP have a substantially higher therapeutic index in mice in inhibiting Moloney murine sarcoma virus-induced tumor formation and associated death and are markedly less inhibitory to human bone marrow cells than PMEA and PMEDAP. The diphosphate derivative of (RS)-FPMPA [(RS)-FPMPApp] is a potent and selective inhibitor of HIV-1 reverse transcriptase but not of HSV-1 DNA polymerase or DNA polymerase alpha. (RS)-FPMPApp, akin to PMEA diphosphate (PMEApp), acts as a DNA chain terminator. The DNA chain-terminating properties of PMEApp and (RS)-FPMPApp seem to be a prerequisite for acyclic nucleoside phosphonates to exhibit antiretrovirus (i.e., anti-HIV) activity.
ISSN: 0027-8424
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory of Virology and Chemotherapy (Rega Institute)
Medicinal Chemistry (Rega Institute)
× corresponding author
# (joint) last author

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