Quaternary Ammonium Compounds with Aromatic Rings for Bacterial Infections
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Solution Overview
Problem
Current antibiotic options are limited by bacterial resistance, and quaternary amine compounds (QACs) used for disinfection are toxic and have unclear antimicrobial effects, particularly at near-inhibitory concentrations, raising concerns about cross-resistance and toxicity, necessitating the development of new compounds for treating bacterial infections.
Innovation Solution
Development of compounds containing one or more quaternary ammonium ions linked by multiple aromatic rings, which may be less toxic and more effective than traditional QACs, potentially usable as pharmaceuticals to treat bacterial infections, including multi-drug resistant strains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional quaternary ammonium compounds (QACs) are used for disinfection at high concentrations, then antimicrobial effectiveness is improved, but toxicity increases
Solution Approach 1:
The patent modifies the chemical structure of traditional QACs by introducing multiple aromatic rings between quaternary ammonium groups, changing the molecular parameters to achieve both reduced toxicity and maintained antimicrobial effectiveness. This structural parameter change allows the compound to be effective at lower concentrations with reduced harmful effects.
Solution Approach 2:
The invention creates composite molecular structures combining multiple quaternary ammonium groups separated by aromatic ring systems, forming a new class of compounds that integrate the antimicrobial properties of QACs with the structural stability and reduced toxicity of aromatic frameworks.
2Reliability
If traditional QACs are used as biocides, then antimicrobial activity is achieved, but cross-resistance with antibiotics may develop
Solution Approach 1:
By changing the molecular parameters of QACs through the introduction of multiple aromatic rings, the patent creates compounds with novel mechanisms of action that differ from traditional QACs and antibiotics, thereby reducing the risk of cross-resistance while maintaining antimicrobial activity.
3Object-affected harmful factors
If QACs are used at near inhibitory concentrations, then reduced toxicity may be achieved, but antimicrobial effectiveness becomes unclear
Solution Approach 1:
The structural modifications with multiple aromatic rings enhance the antimicrobial potency of the compounds, allowing them to maintain effectiveness at lower concentrations where traditional QACs would be ineffective, thus resolving the uncertainty about antimicrobial activity at near-inhibitory doses.
Data Source
AI summary
In one aspect, the present disclosure provides compounds such as those with one or more quaternary ammonium ions joined by one or more aromatic rings. These compounds may have a formula:These compounds may be used in the treatment of a microbial infection such as a bacterial infection including infections of drug resistant strains of bacteria.