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).