Beta2 Adrenergic Agonist Derivatives for Enhanced Therapeutic Efficacy

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Solution Overview

Problem

Current β2 adrenergic receptor agonists have limitations in potency, selectivity, onset, and duration of action, which affects their therapeutic efficacy in treating pulmonary diseases, pre-term labor, glaucoma, and other disorders.

Innovation Solution

Development of novel β2 adrenergic receptor agonist compounds with specific structural formulas, including various substituents and functional groups, which are formulated into pharmaceutical compositions for improved therapeutic effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current β2 adrenergic receptor agonists are used, then therapeutic effects are achieved, but potency, selectivity, onset, and duration of action are less than desirable

Engineering Contradiction:
Improvetherapeutic efficacyVSAvoidduration of action
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent applies parameter changes by systematically modifying the chemical structure of β2 adrenergic receptor agonists through various substitutions at specific positions (R1-R6 groups) to optimize potency, selectivity, onset, and duration of action. This involves changing molecular parameters such as substituent types, positions, and configurations to achieve improved therapeutic properties while maintaining receptor affinity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs local quality by introducing specific substituents at particular positions on the molecular framework (e.g., R2 being hydroxyl, alkoxy, or halo groups; R4 being specific aromatic substituents). Each position is optimized independently to enhance specific aspects of drug performance, such as selectivity for β2 receptors or duration of action, without compromising overall therapeutic efficacy.

Inventive Principle:
Principle #3Local quality

2Reliability

If current β2 adrenergic receptor agonists are used, then therapeutic effects are achieved, but selectivity is less than desirable

Engineering Contradiction:
Improvetherapeutic efficacyVSAvoidselectivity
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent improves selectivity by changing molecular parameters including the introduction of specific aromatic substituents (R4 group), modification of amino group substitutions (R2, R5, R6), and optimization of the hydroxyl group configuration. These parameter changes enhance the drug's selective binding to β2 adrenergic receptors while reducing off-target effects.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent converts potential harmful non-selective binding into beneficial selective binding by strategically placing substituents that favor β2 receptor interaction. For example, specific R4 substituents and amino group modifications that would otherwise increase general adrenergic activity are instead configured to specifically enhance β2 selectivity, turning potential side effects into therapeutic advantages.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If current β2 adrenergic receptor agonists are used, then therapeutic effects are achieved, but onset and duration of action are less than desirable

Engineering Contradiction:
Improvetherapeutic efficacyVSAvoidonset of action
Core Design Contradiction:
ReliabilityVSSpeed

Solution Approach 1:

The patent optimizes onset of action by changing molecular parameters such as the basicity of the amino groups (R2, R5, R6), the hydrophobicity of aromatic substituents (R1, R4), and the overall molecular flexibility. These parameter modifications facilitate faster receptor binding and activation, leading to improved onset of therapeutic effect.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2013183B1Derivatives of 4-(2-amino-1-hydroxiethyl)phenol as agonists of the beta2 adrenergic receptor
Publication Date: 2011.11.02 ALMIRALL SA
  • EP2013183B1 patent drawing
  • EP2013183B1 patent drawing
  • EP2013183B1 patent drawing

AI summary

This invention is directed to compounds of formula (I): to pharmaceutical compositions comprising them; to combination products comprising them; and to their use in therapy.