Sulfonamide Arthropod Control Composition With Modular Substituent Tuning
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Solution Overview
Problem
Existing compounds for controlling harmful arthropods have limitations in efficacy.
Innovation Solution
Development of sulfonamide compounds represented by formula (I) with specific structural variations, including various substituents and combinations, which form the basis for compositions that enhance control efficacy against harmful arthropods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing compounds are used for controlling harmful arthropods, then the control method is simple, but the control efficacy is limited
Solution Approach 1:
The patent applies parameter changes by systematically varying the chemical structure parameters of sulfonamide compounds, including different heterocyclic groups (Het1-Het4), substituent groups (R1-R36), and molecular configurations to optimize control efficacy against harmful arthropods while maintaining reasonable structural complexity
Solution Approach 2:
The patent employs composite materials by creating sulfonamide compounds with composite molecular structures that combine sulfur-containing heterocyclic rings, nitrogen-containing groups, and various substituent patterns to achieve enhanced biological activity and improved control efficacy
2Ease of manufacture
If compound structure is simplified, then manufacturing is easier, but control efficacy decreases
Solution Approach 1:
The patent applies segmentation by dividing the complex sulfonamide compound structure into modular components including the core sulfonamide group, heterocyclic rings (Het1-Het4), and variable substituent groups (R1-R36), allowing systematic synthesis through stepwise assembly of these segments
Solution Approach 2:
The patent implements universality by designing a platform sulfonamide structure with variable parameters that can be adapted to produce multiple compounds with different biological activities, enabling a single synthetic route to generate a series of effective pesticides with varying efficacy profiles
Data Source
AI summary
The present invention provides a compound having excellent control efficacy against harmful arthropods. A compound represented by formula (I)[wherein:Q represented by the following formularepresents a group represented by formula Q1 (wherein # represents the binding site to the sulfur atom, and • represents the binding site to Het), or the like;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, or the like;R3a, R3b, and R3d are identical to or different from each other, and each represents a hydrogen atom, or the like;Het represents a group represented by formula Het1, or the like;A2 represents a nitrogen atom or CR4a;W1 represents an oxygen atom or a sulfur atom;R4a represents a C1-C6 chain hydrocarbon group, or the like;the combination of B1, B2, B3, and B4 represents: a combination wherein B1 represents a nitrogen atom or CR6a, B2 represents CR6e, B3 represents a nitrogen atom or CR6c, and B4 represents a nitrogen atom or CR6d, or the like;R6a, R6c, and R6d are identical to or different from each other, and each represents a hydrogen atom, or the like; andR6e represents a C1-C6 chain hydrocarbon group substituted with one or more substituents selected from the group consisting of a cyano group and a halogen atom, or the like] or an N-oxide thereof has excellent control efficacy against harmful arthropods.