Source:http://linkedlifedata.com/resource/pubmed/id/19158658
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2009-1-22
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pubmed:abstractText |
The Plasmodium falciparum cysteine protease falcipain-2 (FP-2) is an important cysteine protease and an essential hemoglobinase of erythrocytic P. falciparum trophozoites. The discovery of new FP-2 inhibitors is now a hot topic in the search for potential malaria treatments. In this study, a series of novel small molecule FP-2 inhibitors have been designed and synthesized based on three regional optimizations of the lead (R)-2-phenoxycarboxamido-3-(1H-indol-3-yl)-N-benzylpropanamide(1), which was identified using structure-based virtual screening in conjunction with surface plasmon resonance (SPR)-based binding assays. Four compounds--1, 2b, 2k and 2l--showed moderate FP-2 inhibition activity, with IC(50) values of 10.0-39.4 microM, and the inhibitory activity of compound 2k was approximately 3-fold better than that of the prototype compound 1 and may prove useful for the development of micromolar level FP-2 inhibitors. Preliminary SAR data was obtained, while molecular modeling revealed that introduction of H-bond donor or/and acceptor atoms to the phenyl ring moiety in the C region would be likely to produce some additional H-bond interactions, which should consequently enhance molecular bioactivity.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
1420-3049
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
14
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
494-508
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pubmed:dateRevised |
2009-10-27
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pubmed:meshHeading |
pubmed-meshheading:19158658-Amides,
pubmed-meshheading:19158658-Animals,
pubmed-meshheading:19158658-Computer Simulation,
pubmed-meshheading:19158658-Cysteine Endopeptidases,
pubmed-meshheading:19158658-Cysteine Proteinase Inhibitors,
pubmed-meshheading:19158658-Drug Design,
pubmed-meshheading:19158658-Humans,
pubmed-meshheading:19158658-Malaria, Falciparum,
pubmed-meshheading:19158658-Models, Molecular,
pubmed-meshheading:19158658-Molecular Structure,
pubmed-meshheading:19158658-Plasmodium falciparum,
pubmed-meshheading:19158658-Protein Conformation,
pubmed-meshheading:19158658-Structure-Activity Relationship
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pubmed:year |
2009
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pubmed:articleTitle |
2-amido-3-(1H-indol-3-yl)-N-substituted-propanamides as a new class of falcipain-2 inhibitors. 1. Design, synthesis, biological evaluation and binding model studies.
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pubmed:affiliation |
School of Pharmacy, East China University of Science and Technology, 130 Mei Long Road, Shanghai 200237, PR China. jinzh@mail.ecust.edu.cn
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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