Sulfonyl-quinoline derivatives for mGluR1 and mGluR5 receptor modulation

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Solution Overview

Problem

Current compounds do not effectively target mGluR1 and mGluR5 receptors for therapeutic modulation in neurological and psychiatric disorders, acute and chronic pain, and neuromuscular dysfunctions, lacking specificity and potency.

Innovation Solution

Development of new mGluR1 and mGluR5 receptor subtype preferring ligands of formula (I), including phenyl and thienyl groups with specific substituents, which form salts, hydrates, and solvates, for use in pharmaceutical compositions to modulate these receptors therapeutically.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing compounds are used for mGluR1 and mGluR5 receptor modulation, then therapeutic application is possible, but potency and selectivity are insufficient

Engineering Contradiction:
Improvetherapeutic efficacyVSAvoidreceptor selectivity
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent applies local quality by introducing specific substituent patterns at defined positions on the quinoline core structure. Different substituents (halogens, alkyl groups, aryl groups, heteroaryl groups) are placed at specific positions (R1-R6) to optimize interaction with specific receptor subtypes, thereby achieving both potency and selectivity simultaneously

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent employs parameter changes by systematically varying chemical parameters including substituent types, substituent positions, and molecular weight ranges. This allows optimization of the compounds' binding affinity and selectivity for mGluR1 versus mGluR5 receptors while maintaining therapeutic efficacy

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If compound structure is simplified for ease of manufacture, then production becomes easier, but receptor binding potency decreases

Engineering Contradiction:
Improvesynthetic accessibilityVSAvoidbinding potency
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent applies segmentation by dividing the molecule into distinct functional modules: a quinoline core structure with independently variable substituent groups (R1-R6). This modular approach allows each position to be optimized for binding while maintaining overall structural simplicity that facilitates synthesis through sequential, independent steps

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs universality by designing a core quinoline structure that serves multiple functions: providing structural rigidity for binding, offering multiple substitution positions for optimization, and maintaining chemical stability. This universal scaffold supports diverse substituent combinations without requiring complete resynthesis of the core structure

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP2167469B1Sulfonyl-quinoline derivatives
Publication Date: 2012.08.15 RICHTER GEDEON NYRT
  • EP2167469B1 patent drawing
  • EP2167469B1 patent drawing
  • EP2167469B1 patent drawing

AI summary

New mGluRl and mGluR5 receptor subtype preferring ligands of formula: (I) and/or salts and/or hydrates and/or solvates thereof, to the processes and intermediates for their preparation, to pharmaceutical compositions containing these compounds and to their use in therapy and/or prevention of a condition which requires modulation of mGluRl and mGluR5 receptors.FORMULE (I) wherein Ar1 represents an optionally substituted phenyl or heteroaryl group; Ar2 represents a substituted phenyl or an optionally substituted heteroaryl group; R1, R2, R3 and R4 represent independently a substituent selected from hydrogen, halogen, cyano, alkyl, alkoxy, hydroxy, trifluoromethyl, amino, alkylamino, dialkylamino, aminomethyl, alkylaminomethyl, dialkylaminomethyl