Novel hemiasterlin derivative and use thereof

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Solution Overview

Problem

Natural hemiasterlin, derived from marine sponges, exhibits significant anticancer activity but raises safety concerns.

Innovation Solution

Development of novel hemiasterlin derivatives, including compounds of Chemical Formula 1 and their isomers, pharmaceutically acceptable salts, and solvates, conjugated with carriers such as antibodies to target specific cancer cells, forming drug-linker or carrier-drug conjugates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If natural hemiasterlin is used as an anticancer agent, then significant anticancer activity is achieved, but safety issues arise

Engineering Contradiction:
Improveanticancer activityVSAvoidsafety issues
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies parameter changes by modifying the chemical structure of natural hemiasterlin through substitution at specific positions (R1-R6 groups) to create derivatives with improved safety profiles while maintaining anticancer activity. This involves changing physical and chemical parameters of the molecule to reduce harmful effects.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates composite structures by conjugating hemiasterlin derivatives with carrier molecules (such as antibodies) to form drug-carrier conjugates. This composite approach allows the active drug component to be delivered more selectively to cancer cells, improving safety while maintaining efficacy.

Inventive Principle:
Principle #40Composite materials

2Object-affected harmful factors

If hemiasterlin derivatives are developed to improve safety, then safety profile is improved, but structural complexity increases

Engineering Contradiction:
Improvesafety profileVSAvoidmolecular structure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies local quality by making specific localized modifications to the hemiasterlin molecule at particular positions (R1-R6 substitution patterns) rather than comprehensive structural changes. This allows safety improvement through targeted modifications while minimizing overall structural complexity increases.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP4671233A1Novel hemiasterlin derivative and use thereof
Publication Date: 2025.12.31 PINOTBIO INC
  • EP4671233A1 patent drawingFigure 1~2
  • EP4671233A1 patent drawing
  • EP4671233A1 patent drawing

AI summary

The present invention provides a novel hemiasterlin derivative, a preparation method therefor, and a use thereof. In the present invention, an anticancer effect is confirmed using a novel hemiasterlin derivative with improved stability.