Fused-Ring Piperidine 5-HT2A Modulator for Rapid Antidepressant Action

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Solution Overview

Problem

Current antidepressants, such as SSRIs and ketamine, have slow onset of action, low response rates, and adverse effects like nausea and hallucinations, while psychedelics and lumateperone lack clarity in mechanism and are limited to specific disorders.

Innovation Solution

Development of a fused-piperidine compound that acts as a 5-HT 2A receptor modulator, avoiding hallucinogenic side effects and providing rapid antidepressant effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If SSRIs are used to treat depression, then tolerance and safety are improved, but onset of action is slow and adverse reactions occur

Engineering Contradiction:
ImprovesafetyVSAvoidonset of action
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent modifies the molecular structure of lumateperone by changing chemical parameters (introducing specific substituents at defined positions) to create a new compound with improved pharmacological properties, achieving rapid onset while maintaining safety profile

Inventive Principle:
Principle #35Parameter changes

2Loss of time

If ketamine is used to treat depression, then rapid antidepressant effect is achieved, but hallucinogenic side effects and addiction risks occur

Engineering Contradiction:
Improveonset of actionVSAvoidhallucinogenic side effects
Core Design Contradiction:
Loss of timeVSObject-generated harmful factors

Solution Approach 1:

The patent introduces specific local structural features (substituents at particular positions in the molecular structure) to selectively modulate receptor binding properties, achieving rapid antidepressant effect through 5-HT2A receptor modulation while avoiding hallucinogenic effects by controlling local chemical properties

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent changes key molecular parameters (substituent types, positions, and configurations) to optimize the compound's interaction with neuronal receptors, producing rapid antidepressant efficacy without the harmful hallucinogenic side effects associated with ketamine

Inventive Principle:
Principle #35Parameter changes

3Loss of information

If lumateperone is used to treat depression, then mechanism of action is clarified through 5-HT2A receptor antagonism, but response rate is limited to 51.1% and applicability is restricted to bipolar depression

Engineering Contradiction:
Improvemechanism of action clarityVSAvoidapplicability to depression types
Core Design Contradiction:
Loss of informationVSAdaptability or versatility

Solution Approach 1:

The patent creates a compound structure that can broadly activate multiple relevant neurotransmitter systems (5-HT2A, D2, SERT modulation) to provide universal antidepressant efficacy across different depression types including major depression, treatment-resistant depression, and bipolar depression

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

Solution Approach 2:

The patent optimizes molecular parameters to enhance the compound's ability to modulate multiple receptor systems simultaneously, improving response rate and expanding applicability to various depression subtypes while maintaining clear mechanism of action through controlled receptor interactions

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4631945A1Fused ring piperidine compound, and preparation method therefor and use thereof
Publication Date: 2025.10.15 SHANGHAI TECH UNIV
  • EP4631945A1 patent drawingFigure 1~2
  • EP4631945A1 patent drawingFigure 3
  • EP4631945A1 patent drawingFigure 4~5

AI summary

Disclosed are a fused ring piperidine compound, and a preparation method therefor and the use thereof. The fused ring piperidine compound is as represented by formula I'. The fused ring piperidine compound has a relatively good anti-depression effect, and has good application prospects.