Abstract
We tested a set of boron containing arylethanolamine derivatives on the human and guinea pig β(2) adrenoceptor (β(2)AR) 3-D structures by docking methodology. The compound with the highest affinity based on docking analysis, (R)-4-(2-(tert-butylamino)-1-hydroxyethyl)-2-(hydroxymethyl)phenyl hydrogen phenylboronate (boronterol) was synthesized, characterized and tested in guinea pig tracheal rings at basal tone and with histamine-induced contractions. Boronterol was at least eightfold more potent than salbutamol as a smooth muscle relaxant drug (judged by the EC(50) values) and showed a similar maximal relaxant effect as isoproterenol. ICI118,551 showed competitive antagonism on the relaxing effect of boronterol. These results suggest the β(2)AR agonist action of boronterol.
Copyright © 2010 Elsevier Ltd. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adrenergic beta-2 Receptor Agonists / chemical synthesis*
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Adrenergic beta-2 Receptor Agonists / chemistry
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Adrenergic beta-2 Receptor Agonists / pharmacology
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Albuterol / analogs & derivatives*
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Albuterol / chemical synthesis
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Albuterol / chemistry
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Albuterol / pharmacology
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Animals
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Binding Sites
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Computer Simulation
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Drug Design
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Guinea Pigs
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Humans
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Isoproterenol / pharmacology
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Muscle Relaxation / drug effects
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Neuromuscular Agents / chemical synthesis*
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Neuromuscular Agents / chemistry
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Neuromuscular Agents / pharmacology
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Protein Structure, Tertiary
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Receptors, Adrenergic, beta-2 / chemistry*
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Receptors, Adrenergic, beta-2 / metabolism
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Trachea / drug effects
Substances
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(R)-4-(2-(tert-butylamino)-1-hydroxyethyl)-2-(hydroxymethyl)phenyl hydrogen phenylboronate
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Adrenergic beta-2 Receptor Agonists
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Neuromuscular Agents
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Receptors, Adrenergic, beta-2
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Isoproterenol
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Albuterol