Abstract
New substituted (1-thioxo-1,2,3,4-tetrahydro-β-carbolin-9-yl)acetic acids were designed as the inhibitor of AKR1B1 based upon the structure of rhetsinine, a minor alkaloidal component of Evodia rutaecarpa, and twenty derivatives were synthesized and evaluated. The most active compound of the series was (2-benzyl-6-methoxy-1-thioxo-1,2,3,4-tetrahydro-β-carbolin-9-yl)acetic acid (7m), which showed comparable inhibitory activity for AKR1B1 (IC(50)=0.15μM) with clinically used epalrestat (IC(50)=0.1μM). In the view of activity and selectivity, the most potent compound was (2-benzyl-6-carboxy-1-thioxo-1,2,3,4-tetrahydro-β-carbolin-9-yl)acetic acid (7t), which showed strong inhibitory effect (IC(50)=0.17μM) and very high selectivity for AKR1B1 against AKR1A1 (311:1) and AKR1B10 (253:1) compared with epalrestat.
Copyright © 2011 Elsevier Ltd. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Acetates / chemical synthesis
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Acetates / chemistry*
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Acetates / pharmacology*
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Aldehyde Reductase / antagonists & inhibitors*
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Aldehyde Reductase / metabolism
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Aldo-Keto Reductases
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Binding Sites
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Carbolines / chemical synthesis*
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Carbolines / chemistry
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Carbolines / isolation & purification
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Carbolines / pharmacology*
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Computer Simulation
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Drug Design*
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Enzyme Activation / drug effects
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Enzyme Inhibitors / chemical synthesis*
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Enzyme Inhibitors / chemistry
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Enzyme Inhibitors / pharmacology*
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Evodia / chemistry
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Humans
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Hydrogen Bonding
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Kinetics
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Protein Structure, Tertiary
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Structure-Activity Relationship
Substances
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(2-benzyl-6-carboxy-1-thioxo-1,2,3,4-tetrahydro-beta-carbolin-9-yl)acetic acid
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Acetates
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Carbolines
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Enzyme Inhibitors
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N2-(2-methylaminobenzoyl)tetrahydro-1H-pyrido(3,4-b)indol-1-one
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AKR1B10 protein, human
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Aldo-Keto Reductases
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AKR1B1 protein, human
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Aldehyde Reductase