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M9490433.TXT
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1994-09-19
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Document 0433
DOCN M9490433
TI Synthesis of naphthalenesulfonic acid small molecules as selective
inhibitors of the DNA polymerase and ribonuclease H activities of HIV-1
reverse transcriptase.
DT 9411
AU Mohan P; Loya S; Avidan O; Verma S; Dhindsa GS; Wong MF; Huang PP;
Yashiro M; Baba M; Hizi A; Department of Medicinal Chemistry and
Pharmacognosy, College of; Pharmacy, University of Illinois at Chicago
60680.
SO J Med Chem. 1994 Aug 5;37(16):2513-9. Unique Identifier : AIDSLINE
MED/94334908
AB Over 25 selected naphthalenesulfonic acid derivatives were evaluated for
their inhibitory effect on two different functional domains of the HIV-1
reverse transcriptase (RT), namely the ribonuclease H and DNA polymerase
activities. Most of the analogues were found to be either specific
toward the DNA polymerase activity or showed nonselective inhibition of
both catalytic functions. The most active compounds are either
symmetrical derivatives or nonsymmetrical derivatives containing a
lipophilic appendage consisting of a palmitoyl or cholesteryl moiety.
The six most active compounds in the preliminary screen, derivatives 6,
16, 17, 23, 26, and 27, were subjected to experiments to determine their
50% inhibitory concentration (IC50) values in the assays that measure
RNA-dependent DNA polymerase (RDDP), DNA-dependent DNA polymerase
(DDDP), and ribonuclease H (RNase H) functions of HIV-1 RT. The most
potent derivative was a nonsymmetric cholesterol-linked
4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid analogue, compound 23,
which demonstrated an IC50 value of 0.06 microM for inhibiting RDDP
activity. Inhibition of DDDP and RNase H activity for this compound was
demonstrated at concentrations that were over 100-fold of that for
inhibiting RDDP activity. However, the potency of this active compound
does not correlate in the whole virus assay, probably due to a lack of
cellular entry. The cholesterol derivative, 23, also possesses HIV-1
protease inhibitory activity and belongs to a unique class of
multifunctional HIV-1 inhibitors.
DE Cholesterol/*ANALOGS & DERIVATIVES/CHEMICAL SYNTHESIS/ PHARMACOLOGY
DNA Polymerases/*ANTAGONISTS & INHIB HIV Protease Inhibitors/CHEMICAL
SYNTHESIS/PHARMACOLOGY HIV-1/DRUG EFFECTS Molecular Structure
Naphthalenesulfonates/*CHEMISTRY Reverse Transcriptase/*ANTAGONISTS &
INHIB Ribonuclease H, Calf Thymus/*ANTAGONISTS & INHIB RNA
Replicase/ANTAGONISTS & INHIB Structure-Activity Relationship JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).