Pyrimidine Heterocyclic Compounds for Broad-Spectrum Seizure Control
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Solution Overview
Problem
Existing antiepileptic drugs often disrupt neuronal activity balance at higher doses, leading to motor dysfunction and uncontrolled seizures, and lack a wide treatment spectrum for 30% of epileptic patients.
Innovation Solution
Development of a novel pyrimidine compound and its salts that maintain neuronal excitation/inhibition balance, effectively treating a wide range of epileptic seizures with minimal side effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing antiepileptic drugs are used at higher doses to suppress seizures, then seizure control is improved, but neuronal activity balance is disturbed leading to motor dysfunction
Solution Approach 1:
The patent modifies the chemical structure of pyrimidine compounds by changing parameters such as substituting hydrogen atoms with halogen atoms (fluorine, chlorine, bromine) at specific positions (R1, R2, R3), adjusting molecular weight and electronic properties to achieve optimal seizure control without disrupting neuronal activity balance
Solution Approach 2:
The invention creates composite heterocyclic compounds combining pyrimidine core structures with various aromatic rings (benzene, pyridine, indole, indazole) and heterocyclic groups, forming multi-component molecular structures that provide broad-spectrum seizure control while maintaining neuronal excitation-inhibition balance
2Reliability
If existing antiepileptic drugs are used to treat seizures, then seizure suppression is achieved, but treatment spectrum is limited for 30% of epileptic patients
Solution Approach 1:
The patent develops a series of pyrimidine compounds that can effectively treat multiple seizure types including focal seizures, generalized seizures, tonic-clonic seizures, absence seizures, and myoclonic seizures, making the drug regimen universally applicable across different epileptic conditions and patient populations
Solution Approach 2:
The invention introduces specific local modifications at different positions of the pyrimidine molecule (R1, R2, R3 substituents) to optimize binding affinity for different seizure types and neuronal subtypes, enabling targeted effective treatment for various epileptic presentations
3Adaptability or versatility
If pyrimidine compounds are synthesized with various substituents to widen treatment spectrum, then adaptability is improved, but compound complexity increases
Solution Approach 1:
The patent divides the pyrimidine compound structure into distinct functional segments: the core pyrimidine ring system providing basic antiepileptic activity, aromatic substituent groups (R1-R3) providing specificity for different seizure types, and linker groups connecting these segments, allowing systematic design and optimization of each component
Data Source
AI summary
The present invention provides a method for treating various diseases with a novel heterocyclic compound represented by Formula [I] and a salt thereof:wherein the symbols are as defined in the specification, which is useful for treating, preventing and/or diagnosing seizure and the like in disease involving epileptic seizure or convulsive seizure (including multiple drug resistant seizure, refractory seizure, acute symptomatic seizure, febrile seizure and status epilepticus), as well as a medical use therefor.