Quinoline SERCA Modulators for ER Stress Reduction

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Solution Overview

Problem

Current therapeutic agents are inadequate in effectively reducing endoplasmic reticulum (ER) stress, which is linked to various diseases such as diabetes, Alzheimer's, and Parkinson's, as they fail to restore ER homeostasis and modulate sarcoplasmic/endoplasmic reticulum Ca2+ ATPase (SERCA) activity efficiently.

Innovation Solution

Development of SERCA modulators, specifically compounds C18 and its pharmacokinetically improved variants, which are administered to treat or prevent ER stress-related diseases by modulating SERCA activity and restoring ER homeostasis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current therapeutic agents are used to treat ER stress-related diseases, then they are administered to patients, but they fail to effectively reduce ER stress and restore ER homeostasis

Engineering Contradiction:
Improveeffectiveness in reducing ER stressVSAvoidinadequate modulation of SERCA activity
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent modifies the chemical structure of SERCA modulator compounds by changing parameters such as the R2 substituent groups (from phenyl to more lipophilic groups like 2-naphthyl, 2-biphenyl, or 2-anthryl) and adjusting molecular properties. These parameter changes improve pharmacokinetic properties including oral bioavailability, half-life, and potency, thereby enhancing the reliability of ER stress reduction while maintaining safe pharmacological profiles.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If SERCA modulators with improved pharmacokinetic properties are developed, then their efficacy is enhanced, but the complexity of compound optimization increases

Engineering Contradiction:
Improvepharmacokinetic propertiesVSAvoidcompound structure optimization
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs a systematic segmentation approach by dividing the SERCA modulator compound into distinct structural modules: a core quinoline or isoquinoline scaffold, various substituent positions (R1, R2, R3, R4, R5, R6, R7, R8), and specific functional group variations. This modular segmentation allows independent optimization of each segment's properties (lipophilicity, molecular weight, hydrogen bonding capacity) to achieve desired pharmacokinetic profiles while simplifying the overall optimization process through structure-activity relationship (SAR) analysis.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4037685B9Quinoline that modulate serca and its use for treating disease
Publication Date: 2024.03.06 NEURODON CORP
  • EP4037685B9 patent drawingFigure 1A~2
  • EP4037685B9 patent drawingFigure 3
  • EP4037685B9 patent drawingFigure 4A~5

AI summary

Provided herein are compounds of Formula (I), pharmaceutical compositions thereof, and methods of their use for treating, preventing, or ameliorating one or more symptoms of a neurological disease, neurodegenerative disorder, or diabetes.