Abstract
A library of substituted chromeno[3,4-b]indoles was developed as Lamellarin isosters. Synthesis was achieved from indoles after a four-step pathway sequence involving C-3 iodination, a Suzuki cross-coupling reaction, and a one pot deprotection/lactonisation step. Twenty final compounds were tested in order to determine their activity against topoisomerase I and kinases, the two major biological activities of Lamellarins. One newly synthesized derivative exhibited a strong topoisomerase activity comparable to reference compounds such as campthotecin and Lamellarin with only a weak kinase inhibition. Two other lead compounds were identified as new nanomolar DYRK1A inhibitors and several other drugs affected the kinases in the sub-micromolar range. These results will enable us to use the chromeno[3,4-b]indole as a pharmacophore to develop potent treatments for neurological or oncological disorders in which DYRK1A is fully involved.
Copyright © 2012 Elsevier Masson SAS. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Coumarins / chemical synthesis
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Coumarins / chemistry*
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Coumarins / pharmacology*
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DNA Topoisomerases, Type I / metabolism
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Dyrk Kinases
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Heterocyclic Compounds, 4 or More Rings / chemical synthesis
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Heterocyclic Compounds, 4 or More Rings / chemistry*
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Heterocyclic Compounds, 4 or More Rings / pharmacology*
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Humans
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Indoles / chemical synthesis
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Indoles / chemistry*
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Indoles / pharmacology*
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Isoquinolines / chemical synthesis
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Isoquinolines / chemistry*
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Isoquinolines / pharmacology*
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Models, Molecular
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Protein Kinase Inhibitors / chemistry*
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Protein Kinase Inhibitors / pharmacology*
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Protein Serine-Threonine Kinases / antagonists & inhibitors*
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Protein Serine-Threonine Kinases / metabolism
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Protein-Tyrosine Kinases / antagonists & inhibitors*
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Protein-Tyrosine Kinases / metabolism
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Structure-Activity Relationship
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Topoisomerase I Inhibitors / chemical synthesis
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Topoisomerase I Inhibitors / chemistry
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Topoisomerase I Inhibitors / pharmacology
Substances
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Coumarins
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Heterocyclic Compounds, 4 or More Rings
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Indoles
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Isoquinolines
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Protein Kinase Inhibitors
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Topoisomerase I Inhibitors
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lamellarin D
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Protein-Tyrosine Kinases
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Protein Serine-Threonine Kinases
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DNA Topoisomerases, Type I