Mitochondrial ROS-Scavenging Compounds for Diastolic Dysfunction
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Solution Overview
Problem
There are no specific treatments available for heart failure with preserved ejection fraction (HFpEF), which is primarily caused by diastolic dysfunction due to overproduction of harmful reactive oxygen species (ROS) from mitochondria.
Innovation Solution
Development of compounds of formula I that inhibit mitochondrial ROS, which are more potent than mitoTEMPO in scavenging ROS, formulated as pharmaceutical agents for treating diastolic dysfunction and atrial fibrillation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mitoTEMPO is used to scavenge mitochondrial ROS, then diastolic function is improved, but the potency is insufficient compared to compounds of formula I
Solution Approach 1:
The patent modifies the chemical structure of mitoTEMPO by changing parameters such as the substituent groups on the piperidine ring (introducing compounds with aryl, heteroaryl, alkyl groups at positions 2, 2', 6, 6'), thereby enhancing the ROS scavenging potency while maintaining mitochondrial targeting capability
Solution Approach 2:
The patent creates composite chemical structures combining the mitochondrial targeting moiety (tempro radical) with various substituted groups (aryl, heteroaryl, alkyl) to produce compounds that exhibit both mitochondrial accumulation and superior ROS scavenging activity compared to mitoTEMPO
2Object-generated harmful factors
If compounds of formula I are developed to increase ROS scavenging potency, then ROS inhibition is enhanced, but there are no specific treatments available for HFpEF
Solution Approach 1:
The patent develops a series of compounds (Formula I) that can universally target mitochondrial ROS across different pathological conditions including HFpEF, atrial fibrillation, and other cardiovascular diseases, providing a multi-functional therapeutic approach
3Object-affected harmful factors
If mitochondrial ROS scavenging is enhanced, then oxidative stress is reduced, but the complexity of compound structure increases
Solution Approach 1:
The patent introduces specific substituted groups at localized positions (2, 2', 6, 6' positions on the piperidine rings) to enhance ROS scavenging activity without fundamentally altering the core mitochondrial targeting structure, thereby achieving improved efficacy with controlled complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The compounds effectively inhibit mitochondrial ROS, improving diastolic function and reducing the symptoms of HFpEF, with potential therapeutic benefits for atrial fibrillation.
Implementation Method 1
The ROS scavenger mitoTEMPO targets mitochondria to convert superoxide into hydrogen peroxide
Data Source
AI summary
The invention provides a compound of formula (I): or a salt thereof, wherein A, B, R1, R2, R3 and X have any of the values described in the specification, as well as compositions comprising a compound of formula I. The compounds are useful as therapeutic agents for treating diastolic dysfunction.