Abstract
A structure-activity relationship study of the amine portion of the calcilytic compound NPS-2143 resulted in the discovery of substituted 2-benzylpyrrolidines as replacements for the 1,1-dimethyl-2-naphthalen-2-yl-ethylamine. When compared to NPS-2143, a newly discovered compound, 3h, exhibited similar potency as a calcium-sensing receptor (CaR) antagonist and a superior human ether-a-go-go related gene (hERG) profile.
MeSH terms
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Calcium Signaling / drug effects
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ERG1 Potassium Channel
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Ether-A-Go-Go Potassium Channels
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Humans
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Inhibitory Concentration 50
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Naphthalenes / pharmacology
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Patch-Clamp Techniques
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Potassium Channels, Voltage-Gated / antagonists & inhibitors
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Propanols / chemical synthesis*
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Propanols / pharmacology
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Receptors, Calcium-Sensing / antagonists & inhibitors*
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Structure-Activity Relationship
Substances
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ERG1 Potassium Channel
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Ether-A-Go-Go Potassium Channels
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KCNH2 protein, human
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N-(2-hydroxy-3-(2-cyano-3-chlorophenoxy)propyl)-1,1-dimethyl-2-(2-nephthyl)ethylamine
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Naphthalenes
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Potassium Channels, Voltage-Gated
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Propanols
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Receptors, Calcium-Sensing