Sulfonamide Compound Structure Variation for Harmful Arthropod Control
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Solution Overview
Problem
Existing compounds do not effectively control harmful arthropods.
Innovation Solution
A compound represented by formula (I) with specific structural components and substituents, including various alkyl, cycloalkyl, and heterocyclic groups, which demonstrates excellent control efficacy against harmful arthropods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing compounds are used for harmful arthropod control, then the control composition can be formulated, but the control efficacy against harmful arthropods is insufficient
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of sulfonamide compounds through systematic variation of substituents (R1-R6) at different positions of the molecular framework. This includes changing heterocyclic groups, alkyl chains, halogen atoms, and other functional groups to optimize biological activity and control efficacy against harmful arthropods while maintaining the core sulfonamide structure.
2Reliability
If new sulfonamide compound structures are developed to improve control efficacy, then the effectiveness against harmful arthropods increases, but the structural complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the sulfonamide molecule into distinct functional segments: the core sulfonamide group (H2N-SO2-), the heterocyclic ring system with positions for substituents R1-R6, and various optional functional groups. This modular structure allows independent optimization of different regions to achieve desired biological activity while managing molecular complexity through systematic substitution patterns.
Data Source
AI summary
The present invention provides a compound which has excellent control efficacy against harmful arthropods and is represented by formula (I) wherein Q represents a group represented by formula Q1, etc., R2a and R2b are identical to or different from each other, and each represents a C1-C6 alkyl group optionally substituted with one or more halogen atoms, etc., and Het represents a group represented by formula Het1, etc., or an N-oxide thereof.