Cyclopropane Mitofusin Activators for Neurodegenerative Disease

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Solution Overview

Problem

There is a need for new compounds that target mitofusins to address mitochondrial dysfunction associated with neurodegenerative diseases, as aberrant mitofusin activity contributes to diseases like Charcot-Marie-Tooth disease, amyotrophic lateral sclerosis, and Huntington's disease.

Innovation Solution

Development of specific N-(cycloalkyl or heterocycloalkyl)-6-phenylhexanamide compounds, such as N-((1r,4r)-4-hydroxycyclohexyl)-2-(3-phenylpropyl)cyclopropane-1-carboxamide, which act as potent mitofusin activators, improving plasma half-life and neurological bioavailability by introducing rigidity into the methylene chain.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If rigidity is introduced into the methylene chain of mitofusin activator compounds, then plasma half-life and neurological bioavailability are improved, but molecular flexibility and adaptability are reduced

Engineering Contradiction:
Improveplasma half-lifeVSAvoidmolecular flexibility
Core Design Contradiction:
Duration of action of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by modifying the chemical structure of mitofusin activator compounds, specifically introducing rigidity into the methylene chain through cyclopropane rings or other rigidifying groups. This structural parameter change increases plasma half-life and neurological bioavailability while maintaining the compound's ability to activate mitofusin through optimized spatial arrangement of functional groups.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If new compounds are developed to target mitofusins, then treatment options for mitochondrial dysfunction are expanded, but drug discovery complexity and development time increase

Engineering Contradiction:
Improvetreatment optionsVSAvoiddrug discovery complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the mitofusin activator compound into distinct functional modules: a mitofusin-binding domain with specific stereochemistry, a linker region with controlled flexibility, and a pharmacophore group. This modular segmentation enables systematic optimization of each component's contribution to activity, selectivity, and pharmacokinetic properties, reducing overall drug discovery complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent systematically varies key molecular parameters including stereochemical configuration at chiral centers, length and composition of methylene chains, and types of terminal functional groups. This parameter optimization approach enables identification of compounds with improved plasma half-life and neurological bioavailability while maintaining mitofusin activation activity.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If mitofusin activity is activated to promote mitochondrial fusion, then mitochondrial function is improved, but aberrant mitofusin activity contributing to neurodegenerative diseases is not addressed

Engineering Contradiction:
Improvemitochondrial functionVSAvoidaberrant mitofusin activity
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent optimizes the stereochemical parameters and molecular structure of mitofusin activators to achieve selective activation of mitofusin under specific cellular conditions. The compounds are designed with specific chiral configurations and functional group arrangements that enable them to correct aberrant mitofusin activity associated with neurodegenerative diseases while promoting healthy mitochondrial fusion dynamics.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240199534A1Cyclopropane analogues of n-(trans-4-hydroxycyclohexyl)-6-phenylhexanamide and related compounds
Publication Date: 2024.06.20 DORN GERALD W II DR
  • US20240199534A1 patent drawing
  • US20240199534A1 patent drawing
  • US20240199534A1 patent drawing

AI summary

The present disclosure relates to compounds of Formula (I):or pharmaceutically acceptable salts thereof. The present disclosure also relates to uses of the compounds, e.g., in treating or preventing diseases, disorders, or conditions (e.g., associated with mitochondria).