Thiazole Modulators Resolving Solubility and Affinity Trade-offs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current modulators of adenosine A3 receptors, such as those belonging to the thiazole and thiadiazole derivatives, face challenges due to poor water solubility, which hinders their in vivo applicability for treating various diseases including inflammatory and cardiovascular conditions.
Innovation Solution
Development of 2-amido-1,3-thiazole derivatives with specific aryl or heteroaryl substitutions that enhance their solubility and efficacy as potent modulators of the adenosine A3 receptor, allowing for the formulation of pharmaceutical compositions for treating conditions like glaucoma, asthma, and autoimmune diseases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current thiazole and thiadiazole derivatives are used as A3 receptor modulators, then they can modulate adenosine A3 receptor activity, but they exhibit poor water solubility which hinders in vivo applicability
Solution Approach 1:
The patent introduces specific polar substituents (hydroxyl, carboxyl, amino groups) at particular positions on the thiazole core structure to enhance water solubility locally, while maintaining the hydrophobic aromatic rings necessary for receptor binding affinity. This creates regions of different solubility characteristics within the same molecule.
Solution Approach 2:
The patent systematically varies molecular parameters including substituent types (hydroxyl, carboxyl, amino), substituent positions (2-, 4-, 5-positions on thiazole ring), and chain lengths to optimize the balance between solubility and receptor binding affinity, as demonstrated by the series of compounds with different R1, R2, R3, R4, R5, and R6 groups.
2Reliability
If highly substituted thiazole derivatives are designed to enhance receptor affinity, then binding potency increases, but molecular complexity increases making synthesis and formulation more difficult
Solution Approach 1:
The patent employs a versatile thiazole core structure that can accommodate multiple different substituent types at standardized positions, allowing a single molecular scaffold to serve multiple therapeutic applications while maintaining consistent synthesis pathways and structure-activity relationship patterns.
Solution Approach 2:
The patent places specific functional groups at defined positions on the thiazole ring to fulfill multiple functions: aromatic rings and heteroatoms provide π-stacking and hydrogen bonding for receptor binding, while polar substituents at specific positions enhance solubility and enable pharmaceutical formulation without requiring complete redesign of the molecular core.
Data Source
AI summary
Modulators of adenosin A3 receptors of formula (I) and procedure for preparing these compounds. Other objectives of the present invention are to provide pharmaceutical compositions comprising an effective amount of these compounds and the use of the compounds for manufacturing a medicament for the treatment of pathological conditions or diseases that can improve by modulation of the adenosine A3 receptor.