Heterocyclic Arthropod Control Composition With Higher Efficacy

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Solution Overview

Problem

Existing compounds for controlling harmful arthropods are not effective enough in providing adequate efficacy.

Innovation Solution

A heterocyclic compound represented by formula (I) with specific structural variations and substituents, including combinations of atoms and groups, is developed to enhance efficacy against harmful arthropods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing compounds are used for controlling harmful arthropods, then the control method is simple, but the efficacy is not adequate

Engineering Contradiction:

ImproveefficacyVSAvoidcompound structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by systematically varying structural parameters of the heterocyclic compound (formula I), including different substituent groups (R1-R10), ring sizes (n=0,1,2), and heteroatom configurations (A1-A2, B1-B4 combinations) to optimize arthropod control efficacy while maintaining synthetic feasibility

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention creates composite molecular structures by combining a core heterocyclic framework with multiple functional substituent groups (including cyano, halogen, alkoxy, and heterocyclic groups), forming a composite compound that achieves enhanced efficacy through synergistic structural elements

Inventive Principle:

Principle #40Composite materials

2Ease of manufacture

If compound structure is simplified for ease of manufacture, then manufacturing is easier, but efficacy against harmful arthropods decreases

Engineering Contradiction:

Improvesynthesis easeVSAvoidefficacy

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The compound structure is segmented into distinct functional modules: a core heterocyclic ring system (with configurable A1-A2 and B1-B4 combinations) and separate substituent groups (R1-R10), allowing independent optimization of each segment for both synthesis ease and biological activity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The heterocyclic core structure serves multiple functions simultaneously: it provides the fundamental molecular scaffold, enables diverse substituent attachments for efficacy optimization, and maintains structural stability for reliable synthesis across different derivatives

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260047580A1Heterocyclic compound and harmful arthropod pest control composition containing same

Publication Date: 2026.02.19 SUMITOMO CHEM CO LTD

AI summary

A compound of formula (I) or an N-oxide thereof, a composition for controlling harmful arthropods including the compound, and a method for controlling harmful arthropods by applying the compound,where Q represents a group represented by formula Q1 etc., Z represents an oxygen atom etc., A1 represents CR4a etc., A2 represents a nitrogen atom etc., B1 represents a nitrogen atom or CR6a etc., B2 represents CR1 etc., B3 represents a nitrogen atom or CR6c etc., B4 represents a nitrogen atom or CR6d etc., R1 represents a C1-C6 chain hydrocarbon group etc., R2 represents a C1-C6 alkyl group etc., R3a, R3b and R3d are identical to or different from each other and each represents a C1-C6 chain hydrocarbon group etc., R4a, R6a, R6c and R6d are identical to or different from each other and each represents a C1-C6 chain hydrocarbon group etc., and n is 0, 1 or 2.