Fluoro-substituted pyridine plant disease control agent
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Solution Overview
Problem
Current plant disease control agents, such as chlorine-substituted isonicotinic acid derivatives, often cause plant damage and have weak disease control effects, while fluorine-substituted isonicotinic acid derivatives lack specific descriptions for plant disease control agents.
Innovation Solution
Development of a fluoro-substituted pyridine compound that acts as a plant disease control agent, inducing resistance in plants without direct antimicrobial activity, formulated to reduce plant damage and effectively control plant diseases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chlorine-substituted isonicotinic acid derivatives are used as plant disease control agents, then disease control effects are achieved, but plant damage occurs and disease control effectiveness is weak
Solution Approach 1:
The patent applies parameter changes by substituting the chlorine atom in isonicotinic acid derivatives with fluorine atoms at specific positions (X1 and/or X4). This chemical parameter modification transforms the compound's properties to achieve both disease control effectiveness and reduced plant damage, resolving the contradiction between efficacy and harmful effects.
Solution Approach 2:
The patent implements local quality by specifying particular positions for fluorine substitution (X1 and X4) while allowing other positions (X2 and X3) to remain as hydrogen or other substituents. This localized modification approach optimizes the balance between disease control activity and plant safety without altering the entire molecular structure.
2Productivity
If existing plant disease control agents are applied, then some disease control is achieved, but the control effects are weak and plants suffer damage
Solution Approach 1:
The patent improves disease control efficiency while reducing plant damage through parameter changes in the chemical structure. By introducing fluorine atoms at specific positions (X1 and X4) of the isonicotinic acid derivative, the compound achieves enhanced disease control productivity with reduced harmful effects on plants.
3Reliability
If fluorine-substituted isonicotinic acid derivatives are used, then plant disease control is achieved, but specific effective compounds were not previously identified
Solution Approach 1:
The patent resolves the complexity of compound optimization by applying local quality principles. It identifies specific positions (X1 and X4) for fluorine substitution while allowing flexibility at other positions (X2 and X3), thereby simplifying the structure optimization process while maintaining high disease control effectiveness.
Data Source
AI summary
A plant disease control agent which contains a compound represented by formula (1) as an active ingredient.