Heterocyclic Compounds for Broad-Spectrum Pest Control
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Solution Overview
Problem
Current plant protection products face challenges in terms of broad spectrum efficacy, resistance, toxicity, compatibility, and synthesis effort, necessitating the development of new compounds with improved properties for effective pest control.
Innovation Solution
Development of novel heterocyclic compounds of the formula (I), specifically designed to combat animal pests such as insects, arachnids, and nematodes, through specific synthesis processes involving amines and acid derivatives, utilizing various coupling reagents and solvents to achieve effective pesticide formulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing heterocyclic pesticide compounds are used, then pest control activity is achieved, but the spectrum of efficacy is limited and resistance occurs
Solution Approach 1:
The invention divides the pest control problem into multiple target sites by designing compounds that can inhibit different enzymes (phosphatases, esterases, proteases). The heterocyclic core structure serves as a platform for creating multiple analogs with different specificities, allowing simultaneous targeting of multiple pest physiological pathways rather than relying on a single mode of action.
Solution Approach 2:
The patent systematically varies chemical parameters of the heterocyclic compounds including substituent types (halogen, alkyl, alkoxy), positions (R1-R7), and molecular weight (150-500 g/mol) to optimize activity against different pest species and resistance profiles. This parameter optimization enables tuning of compound properties to achieve broad-spectrum efficacy while managing resistance development.
2Adaptability or versatility
If new heterocyclic compounds are synthesized, then broad-spectrum pest control is achieved, but synthesis effort and complexity increase
Solution Approach 1:
The heterocyclic core structure serves as a universal platform that can be modified with different substituents to create multiple active compounds targeting different pests. The core structure itself (with nitrogen atoms in 5-membered ring) provides the fundamental pesticidal activity, while substituents fine-tune specificity and potency, allowing one synthetic route to generate multiple useful pesticides.
Solution Approach 2:
The patent establishes a preliminary heterocyclic core structure that already possesses pesticidal activity, upon which further substitutions are made to optimize for specific pests. This preliminary structure reduces synthesis complexity compared to building entire molecules from scratch, as the core framework and key functional groups are pre-established.
3Object-affected harmful factors
If conventional pesticide compounds are used, then pest control is achieved, but toxicity and environmental compatibility issues arise
Solution Approach 1:
The patent optimizes molecular weight (150-500 g/mol) and substituent selection (halogen, alkyl, alkoxy groups) to achieve the right balance between pesticidal activity and environmental compatibility. These parameter changes allow tuning of compound properties to reduce non-target toxicity while maintaining effectiveness against pests, addressing both sides of the toxicity-effectiveness trade-off.
Data Source
AI summary
The invention relates to novel heterocyclic compounds, to their use for controlling animal pests, which include arthropods, insects and nematodes, and to methods and intermediate products for producing said novel compounds.