Substituted Piperidine OX2R Agonists for Narcolepsy Alertness
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Solution Overview
Problem
Current treatments for narcolepsy and related sleep disorders, such as idiopathic hypersomnia and sleep apnea syndrome, lack effective orexin type 2 receptor (OX2R) agonists that can improve alertness and reduce symptoms.
Innovation Solution
Development of substituted piperidine compounds with OX2R-activating activity, including their pharmaceutically acceptable salts and pharmaceutical compositions, which can be administered orally or by injection, and used as chemical probes for target protein capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current treatments for narcolepsy are used, then patients receive existing therapeutic options, but effective OX2R agonists that can improve alertness and reduce symptoms are lacking
Solution Approach 1:
The patent applies parameter changes by systematically modifying the chemical structure of piperidine compounds through substitution at different positions (R1, R2, R3, R4, R5, R6 groups) to optimize OX2R agonist activity. This involves changing molecular parameters such as substituent types, positions, and configurations to achieve compounds with improved alertness and symptom reduction effects that were previously lacking in existing treatments
2Reliability
If substituted piperidine compounds are developed as OX2R agonists, then alertness improvement and symptom reduction are achieved, but the complexity of drug development and characterization increases
Solution Approach 1:
The patent applies segmentation by dividing the complex drug development process into distinct stages: synthesis of substituted piperidine compounds, in vitro OX2R binding assays, in vivo pharmacological testing in narcolepsy models, and characterization of specific compounds ( Examples 1-4). This segmented approach manages development complexity by systematically progressing through controlled experimental stages
Solution Approach 2:
The patent uses chemical probes as intermediaries to capture and characterize target proteins (OX2R). These probe compounds serve as mediators between the developed substituted piperidine agonists and the orexin receptor target, enabling detailed characterization of receptor-protein interactions without requiring direct administration of full therapeutic doses
3Adaptability or versatility
If compounds are used for brain imaging and drug development, then target protein capture and characterization are enabled, but the need for multiple applications increases complexity
Solution Approach 1:
The patent applies universality by designing substituted piperidine compounds that serve multiple functions: they act as OX2R agonists for treating narcolepsy and sleep disorders, serve as chemical probes for capturing and characterizing target proteins, and can be used for brain imaging applications. This multi-functional design reduces overall complexity by using a single compound class for multiple purposes rather than developing separate agents for each application
Data Source
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AI summary
Provided are compounds represented by the following formulas (I), (II), (III) and (IV) having orexin type 2 receptor-activating activity, or their pharmaceutically acceptable salts.