Alpha-Substituted Imidazoles for Tick Control
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Solution Overview
Problem
Current antiparasitic agents for mammals and livestock lack efficacy, speed of action, and duration, often have toxic side effects, and are becoming ineffective due to parasite resistance, with existing formulations being hazardous and unsuitable for topical use.
Innovation Solution
Development of new alpha-substituted 2-benzyl imidazoles with improved activity, selectivity for the octopaminergic receptor over adrenergic receptors, and reduced toxicity, designed for low-volume spot-on or topical application to effectively control arthropods and prevent tick attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current antiparasitic agents are used, then parasiticidal activity is achieved, but toxicity and hazardous side effects increase
Solution Approach 1:
The patent modifies the chemical structure of imidazole compounds by changing parameters such as substituting benzyl groups at the 2-position and alkyl groups at the 1-position, adjusting the R1-R6 substituents on the benzyl ring, and controlling the chain length (n=1-6), thereby optimizing the balance between parasiticidal activity and toxicity profile
Solution Approach 2:
The invention creates composite molecular structures combining imidazole core with benzyl and alkyl substituents in specific configurations, where the composite structure enables selective binding to octopaminergic receptors while reducing non-specific toxicity effects
2Reliability
If current antiparasitic agents are used, then parasiticidal activity is achieved, but speed of action decreases
Solution Approach 1:
The patent optimizes the molecular parameters of the imidazole compounds, particularly the nature of substituents at positions 1 and 2, to enhance the compound's ability to bind to octopaminergic receptors and rapidly interfere with parasitic nerve transmission, achieving faster kill times
3Reliability
If current antiparasitic agents are used, then parasiticidal activity is achieved, but duration of action decreases
Solution Approach 1:
The invention modifies the lipophilicity and molecular size parameters of the imidazole compounds through selective substitution, enabling better penetration into the parasitic nervous system and sustained interference with nerve function, thereby extending the duration of parasiticidal activity
4Reliability
If current antiparasitic agents are used, then parasiticidal activity is achieved, but selectivity for octopaminergic receptor decreases
Solution Approach 1:
The patent introduces specific local chemical features at the 2-position (benzyl group with electron-withdrawing substituents) and 1-position (alkyl group) of the imidazole ring, creating local regions of high electron density and specific steric properties that confer selective binding to octopaminergic receptors while avoiding adrenergic receptors
Solution Approach 2:
The invention designs composite molecular structures where the imidazole core is combined with specific benzyl and alkyl substituents, creating a composite molecule with tailored binding characteristics that selectively target octopaminergic receptors over adrenergic receptors
5Reliability
If current antiparasitic agents are used, then parasiticidal activity is achieved, but suitability for topical formulation decreases
Solution Approach 1:
The patent optimizes the physical parameters of the imidazole compounds, particularly logP (lipophilicity) and molecular weight, to enable effective penetration through the animal skin barrier while maintaining parasiticidal activity, making them suitable for topical spot-on formulations
Data Source
AI summary
This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.