Amine Compounds for Lysosomal Disruption via Cation Trapping
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Solution Overview
Problem
Existing lysosomotropic agents, such as antimalarial quinoline compounds, have limited activity and potency in treating diseases characterized by altered lysosomal function, including cancer, inflammatory diseases, and fungal infections.
Innovation Solution
Development of compounds represented by Formula I or their pharmaceutically acceptable salts, which feature monocyclic, bicyclic, or tricyclic aromatic rings with specific substituents, allowing them to accumulate in acidic vacuoles and disrupt lysosomal or vacuolar membrane integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing lysosomotropic agents such as antimalarial quinoline compounds are used, then some therapeutic activity is achieved, but potency and activity are limited
Solution Approach 1:
The patent modifies the chemical structure of existing lysosomotropic agents by changing parameters such as the aromatic ring system (monocyclic, bicyclic, or tricyclic), substituent types (amino, hydroxy, halo, alkyl, alkoxy groups), and chain lengths to optimize accumulation in acidic vacuoles and enhance membrane disruption potency while maintaining therapeutic activity
Solution Approach 2:
The invention creates composite molecular structures combining specific aromatic ring systems with tailored substituent patterns and alkyl/alkoxy chains to achieve synergistic effects in vacuolar accumulation and membrane disruption, resulting in compounds with enhanced potency compared to simple quinoline derivatives
2Reliability
If compounds accumulate in acidic vacuoles to treat disease, then therapeutic effect is achieved, but selectivity between pathogenic and normal cells must be maintained
Solution Approach 1:
The patent designs compounds with specific local chemical features (aromatic ring systems with particular substituent patterns including amino, hydroxy, and halogen groups at specific positions) that optimize interaction with acidic vacuolar environments in pathogenic cells while the lipophilic chains facilitate selective accumulation in these compartments
Solution Approach 2:
Instead of targeting specific pathogenic cell components directly, the invention inverts the approach by targeting the universal acidic vacuolar environment that exists in all cells but is pathologically altered in disease states, using the inverted pH gradient as the selective target for compound accumulation and action
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
These compounds demonstrate improved potency and activity compared to known aminoquinoline drugs, effectively treating inflammatory diseases, neoplastic diseases, and infections by accumulating in and disrupting pathogenic cells' acidic vacuoles.
Implementation Method 1
Agents that target fungi via adequately specific targeting and disruption of fungal acidic vacuoles by cation trapping may be less susceptible to development of resistance through point mutations
Implementation Method 2
when they reach a critical micellar concentration in the vacuole, they behave as detergents, damaging vacuolar membranes
Data Source
AI summary
Amine compounds having activity against inflammation, fungi, unicellular parasitic microorganisms, and cancer are described. The compounds contain a monocyclic, bicyclic, or tricyclic aromatic ring having one, two, or three ring nitrogen atoms.