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M9610329.TXT
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1996-01-30
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Document 0329
DOCN M9610329
TI Mononucleoside phosphotriester derivatives with S-acyl-2-thioethyl
bioreversible phosphate-protecting groups: intracellular delivery of
3'-azido-2',3'-dideoxythymidine 5'-monophosphate.
DT 9601
AU Lefebvre I; Perigaud C; Pompon A; Aubertin AM; Girardet JL; Kirn A;
Gosselin G; Imbach JL; Laboratoire de Chimie Bioorganique, URA CNRS 488,
Universite; Montpellier II, France.
SO J Med Chem. 1995 Sep 29;38(20):3941-50. Unique Identifier : AIDSLINE
MED/96005091
AB The synthesis, in vitro anti-HIV-1 activity, and decomposition pathways
of several mononucleoside phosphotriester derivatives of
3'-azido-2',3'-dideoxythymidine (AZT) incorporating a new kind of
carboxylate esterase-labile transient phosphate-protecting group,
namely, S-acyl-2-thioethyl, are reported. All the described compounds
showed marked antiviral activity in thymidine kinase-deficient CEM cells
in which AZT was virtually inactive. The results strongly support the
hypothesis that such pronucleotides exert their biological effects via
intracellular delivery of the 5'-mononucleotide of AZT. This point was
corroborated by decomposition studies in cell extracts and culture
medium.
DE Antiviral Agents/*CHEMICAL SYNTHESIS/METABOLISM/PHARMACOLOGY Biological
Transport Cell Line Drug Stability HIV-1/*DRUG EFFECTS Support,
Non-U.S. Gov't Thymine Nucleotides/*PHARMACOKINETICS
Zidovudine/*ANALOGS & DERIVATIVES/PHARMACOKINETICS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).