Selective Arthropod Deterrent Compounds via Receptor Discrimination
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Solution Overview
Problem
Current deterrents for arthropods and marine organisms lack selectivity, often affecting vertebrates and having limitations such as bioaccumulation of toxic substances or resistance issues, and there is a need for a highly effective yet safe deterrent that discriminates between invertebrate and vertebrate receptors.
Innovation Solution
Development of compounds and compositions that specifically target arthropod octopamine receptors without activating vertebrate alpha-2 adrenergic receptors, including specific formulas and processes for preparing these compounds, which are effective as deterrents for both terrestrial and marine organisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional deterrents (DEET, biocide-impregnated coatings) are used to achieve effective deterrence, then deterrence effectiveness is improved, but selectivity deteriorates causing effects on vertebrates and bioaccumulation issues
Solution Approach 1:
The patent applies local quality by designing compounds with specific molecular structures that are tailored to fit arthropod octopamine receptors while avoiding vertebrate adrenergic receptors. The chemical structures (Formulas I and II) contain specific functional groups and stereochemical configurations that provide selective binding to invertebrate receptors, thereby achieving local specificity in the interaction between the deterrent and its target.
Solution Approach 2:
The patent employs parameter changes by modifying molecular parameters such as stereochemistry (R/S configurations), functional groups, and structural motifs to optimize selectivity. By carefully adjusting these molecular parameters, the compounds achieve high affinity for arthropod octopamine receptors while maintaining low affinity for vertebrate adrenergic receptors, thus resolving the contradiction between effectiveness and safety.
2Reliability
If deterrents are designed to be highly effective against arthropods, then deterrence potency is improved, but selectivity over vertebrate receptors deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the molecular structure into distinct functional segments: a core structural framework (e.g., phenylpropanolamine backbone) and specific substituent groups that confer selectivity. This segmentation allows the core structure to provide general binding affinity while the substituents provide species-specific recognition, thereby achieving both potency and selectivity simultaneously.
Solution Approach 2:
The patent uses molecular structure as an intermediary that mediates the interaction between the deterrent and the receptor. The specific chemical structures act as intermediaries that translate the intent of selective deterrence into actual selective binding, bridging the gap between desired effectiveness and required safety through carefully designed molecular features.
3Reliability
If existing deterrents are used at high concentrations to overcome resistance, then deterrence effectiveness is improved, but safety concerns increase due to vertebrate effects
Solution Approach 1:
The patent applies copying by creating compounds that replicate the natural ligand-binding interface of octopamine but with modified structural features that are specific to invertebrate receptors. The compounds copy the essential binding characteristics of octopamine while introducing selective elements that prevent interaction with vertebrate adrenergic receptors, thereby maintaining effectiveness against resistant arthropods without vertebrate toxicity.
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 demonstrate high selectivity and potency for arthropod octopamine receptors over vertebrate alpha-2 adrenergic receptors, providing effective deterrence with reduced toxicity and resistance concerns, as shown by their ability to deter a wide variety of arthropods and marine organisms.
Implementation Method 1
molecules which activate (α-like OctR) would disrupt the biting activities of insects and the settlement activity of barnacle cyprids
Implementation Method 2
it has not been possible to find a highly selective small molecule that is capable of readily discriminating between arthropod OctR and vertebrate α2AR
Data Source
AI summary
The present invention related to compounds, compositions, methods of use, and processes for preparing compound which are useful as deterrents for terrestrial arthropods and marine organisms.