Compound, method for producing and storing compound, method for producing targeting agent, and composition
By reacting ligand compounds with click-reactive groups and purifying them using TFA-free organic acids, the method enhances the storage stability and maintains high purity of the compounds, addressing the purity loss issue in existing technologies.
JP2026012349APending Publication Date: 2026-01-23NIHON MEDI PHYSICS CO LTD
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Patent Information
- Application Number
- JP2025183687
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2021-03-26
- Filing Date
- 2025-10-30
- Publication Date
- 2026-01-23
AI Technical Summary
Technical Problem
The use of trifluoroacetic acid (TFA) in the purification and storage of ligand compounds results in decreased purity over time, necessitating a method to improve the storage stability of these compounds.
Method used
A method involving the reaction of a ligand compound with a first compound having a click-reactive group, followed by purification using a water-soluble organic acid-free eluent in liquid chromatography, and subsequent storage under controlled conditions to maintain high purity.
Benefits of technology
The method achieves a purity reduction of 5% or less after one month of storage at -20°C, ensuring the stability and efficiency of the purified compounds.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a method for improving the storage stability of a target compound.SOLUTION: In the production method of the present invention, a ligand compound capable of coordinating to a metal ion is reacted with a first compound having an atomic group capable of undergoing a click reaction to obtain a product containing a second compound having the atomic group capable of undergoing a click reaction and a ligand in the structure. Thereafter, the product is subjected to liquid chromatography using an eluent containing a water-soluble organic acid having predetermined physical properties and not containing trifluoroacetic acid to obtain the purified second compound. The present invention also provides a method for storing the second compound, a composition comprising the second compound, and a method for preparing a targeting agent using the second compound.SELECTED DRAWING: None
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