Linked Life Data

9804703

Source:http://linkedlifedata.com/resource/pubmed/id/9804703

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
23
pubmed:dateCreated
1998-11-30
pubmed:abstractText
With the aim of assessing the role that the thymine base of TSAO-T may play in the interaction of TSAO compounds with HIV-1 reverse transcriptase (RT), we have designed, synthesized, and evaluated for their anti-HIV-1 activity a series of 3-spiro sugar derivatives substituted at the anomeric position with nonaromatic rings or with amine, amide, urea, or thiourea moieties that mimic parts or the whole thymine base of TSAO-T. Also, a dihydrouracil TSAO analogue and O-glycosyl 3-spiro sugar derivatives substituted at the anomeric position with methyloxy or benzyloxy groups have been prepared. Compounds substituted at the anomeric position with an azido, amino, or methoxy group, respectively, were devoid of marked antiviral activity (EC50: 10-200 microM). However, the substituted urea sugar derivatives led to an increase in antiviral potency (EC50: 0.35-4 microM), among them those urea derivatives that mimic most closely the intact TSAO-T molecule retained the highest antiviral activity. Also, the dihydrouracil TSAO derivative retained pronounced anti-HIV-1 activity. None of the compounds showed any anti-HIV-2 activity. The results described herein represent the first examples of sugar derivatives that interact in a specific manner with HIV-1 RT. Molecular modeling studies carried out with a prototype urea derivative indicate that a heteroaromatic ring is not an absolute requirement for a favorable interaction between TSAO-T and HIV-1 RT. Urea derivatives, which can mimic to a large extent both the shape and the electrostatic potential of a thymine ring, can effectively replace this nucleic acid base when incorporated into a TSAO molecular framework with only moderate loss of activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-2623
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4636-47
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Abasic analogues of TSAO-T as the first sugar derivatives that specifically inhibit HIV-1 reverse transcriptase.
pubmed:affiliation
Instituto de Química Médica, C.S.I.C., Juan de la Cierva 3, 28006 Madrid, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't