Triazole Derivative 11β-HSD1 Selective Inhibitor

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Solution Overview

Problem

Current treatments for diseases related to 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1), such as dementia, lack effective and selective inhibitors that also address metabolic disorders and cognitive impairments without significant drug interactions.

Innovation Solution

Development of a triazole derivative with specific substitutions at the 3- and 5-positions of the triazole ring, which exhibits superior 11β-HSD1 selective inhibitory action, improving efficacy, selectivity, safety, and economic efficiency, including in vivo drug effects, pharmacokinetics, and minimal cytochrome P450 enzyme induction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If non-selective 11β-HSD inhibitors are used, then glucocorticoid action is suppressed, but drug interactions and safety issues arise due to lack of selectivity

Engineering Contradiction:
ImproveselectivityVSAvoiddrug interaction
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by introducing specific substituents at defined positions (3- and 5-positions) of the triazole ring. The 3-position requires (di)alkylmethyl or cycloalkyl groups with specific substituents (-O-(aryl or heterocyclic group)), while the 5-position requires aryl, heterocyclic group or cycloalkyl. This localized structural differentiation at specific positions achieves selective inhibition of 11β-HSD1 over 11β-HSD2, resolving the contradiction between suppression of glucocorticoid action and avoidance of drug interactions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent employs parameter changes by systematically varying the chemical structure parameters of the triazole derivative. Specifically, it defines particular substituent types and their positions (3- and 5-positions) to optimize the balance between inhibitory potency and selectivity. By controlling parameters such as the type of aryl/heterocyclic groups and their attachment positions, the invention achieves high selectivity for 11β-HSD1, thereby suppressing glucocorticoid action while minimizing drug interactions associated with non-selective inhibitors.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If existing 11β-HSD1 inhibitors are used, then some therapeutic effect is achieved, but efficacy, selectivity, and safety are insufficient

Engineering Contradiction:
ImproveefficacyVSAvoidmetabolic disorder
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies local quality by introducing specific substituents at defined positions (3- and 5-positions) of the triazole ring. The 3-position requires (di)alkylmethyl or cycloalkyl groups with specific substituents (-O-(aryl or heterocyclic group)), while the 5-position requires aryl, heterocyclic group or cycloalkyl. This localized structural differentiation at specific positions achieves selective inhibition of 11β-HSD1 over 11β-HSD2, resolving the contradiction between suppression of glucocorticoid action and avoidance of drug interactions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent employs parameter changes by systematically varying the chemical structure parameters of the triazole derivative. Specifically, it defines particular substituent types and their positions (3- and 5-positions) to optimize the balance between inhibitory potency and selectivity. By controlling parameters such as the type of aryl/heterocyclic groups and their attachment positions, the invention achieves high selectivity for 11β-HSD1, thereby suppressing glucocorticoid action while minimizing drug interactions associated with non-selective inhibitors.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If triazole derivatives with simple structures are used, then synthesis is easier, but inhibitory activity and selectivity are insufficient

Engineering Contradiction:
Improvesynthesis complexityVSAvoidinhibitory activity
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent applies local quality by introducing specific substituents at defined positions (3- and 5-positions) of the triazole ring. The 3-position requires (di)alkylmethyl or cycloalkyl groups with specific substituents (-O-(aryl or heterocyclic group)), while the 5-position requires aryl, heterocyclic group or cycloalkyl. This localized structural differentiation at specific positions achieves selective inhibition of 11β-HSD1 over 11β-HSD2, resolving the contradiction between suppression of glucocorticoid action and avoidance of drug interactions.

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The triazole derivative effectively inhibits 11β-HSD1, providing a therapeutic agent for preventing or treating dementia and related metabolic disorders with improved safety and reduced drug interaction risks.

Implementation Method 1

11β-HSD1 is an enzyme which converts the inactive form into the active form and... an 11β-HSD1-selective inhibitor will suppress glucocorticoid action in tissues by inhibiting conversion into the active form glucocorticoid

Methodology Applied
Scientific EffectEnzyme inhibition: Enzyme

Data Source

PatentEP2298747B1Triazole derivative or salt thereof
Publication Date: 2016.12.28 ASTELLAS PHARMA INC
  • EP2298747B1 patent drawing
  • EP2298747B1 patent drawing
  • EP2298747B1 patent drawing

AI summary

[Problem] A compound, which can be used for preventing or treating diseases, in which 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) is concerned, in particular, diabetes, insulin resistance, dementia, schizophrenia and depression, is provided. [Means for Solution] It was found that a triazole derivative, in which one of the 3- and 5-positions of the triazole ring has (di)alkylmethyl or cycloalkyl, each of which is substituted with -O- (aryl or a heterocyclic group, each of which may be substituted, or lower alkylene-cycloalkyl), and the other thereof has aryl, a heterocyclic group or cycloalkyl, each of which may be substituted, or a pharmaceutically acceptable salt thereof exhibits potent 11β-HSD1 inhibitory action. From the above, the triazole derivative of the present invention can be used for preventing or treating diabetes, insulin resistance, dementia, schizophrenia and depression.