Isatoic Anhydride Derivatives for Aqueous Coupling

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Solution Overview

Problem

Existing coupling schemes using isatoic anhydride derivatives often require expensive reagents, produce undesired side products, are slow, and difficult to monitor in real-time, and typically use non-aqueous media, which are less desirable for biological applications.

Innovation Solution

Development of isatoic anhydride derivatives with a quaternary ammonium group that are water-soluble, allowing for efficient labeling and functionalization of materials in aqueous media, and can be readily prepared from common starting reagents, along with associated anthranilate derivatives for various applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If isatoic anhydride derivatives are used for coupling reactions, then labeling and functionalization can be achieved, but expensive reagents are required and undesired side products are formed

Engineering Contradiction:
Improvecoupling efficiencyVSAvoidside products
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The patent modifies the chemical structure of isatoic anhydride derivatives by introducing a quaternary ammonium group, which fundamentally changes the solubility parameters and reactivity characteristics of the compound, enabling it to function effectively in aqueous environments while reducing side product formation

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs readily available starting materials and common chemical reagents to synthesize the modified isatoic anhydride derivatives, replacing expensive specialized reagents with more economical alternatives that achieve the same coupling function

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Reliability

If traditional coupling schemes are used, then coupling reactions can proceed, but they are slow and difficult to monitor in real time

Engineering Contradiction:
Improvecoupling capabilityVSAvoidreaction speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The introduction of the quaternary ammonium group alters the kinetic parameters of the coupling reaction, increasing the reaction rate by improving solubility and molecular accessibility, thereby accelerating the coupling process

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent enables real-time monitoring of the coupling reaction by utilizing the inherent properties of the isatoic anhydride derivative system, allowing researchers to track reaction progress and optimize conditions dynamically

Inventive Principle:
Principle #23Feedback

3Reliability

If non-aqueous reaction media are used for isatoic anhydride coupling, then reactions can proceed, but they are less desirable for biological applications

Engineering Contradiction:
Improvecoupling functionalityVSAvoidmedia compatibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent fundamentally changes the solubility parameter of isatoic anhydride derivatives by attaching a quaternary ammonium group, transforming them from water-insoluble to water-soluble compounds, thus enabling their use in aqueous biological systems

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The modified isatoic anhydride derivatives with quaternary ammonium groups achieve universal applicability across different reaction media, particularly excelling in aqueous environments while maintaining coupling functionality, making them versatile for both chemical and biological applications

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

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

These derivatives facilitate efficient and soluble coupling reactions in aqueous environments, reducing the need for expensive reagents and minimizing side products, while enabling real-time monitoring and quantification, and can be used for a wide range of materials including biological molecules.

Implementation Method 1

isatoic anhydride derivatives with a quaternary ammonium group that are water-soluble, allowing for efficient labeling and functionalization of materials in aqueous media

Methodology Applied
Scientific EffectSolvation: Solvation

Data Source

PatentUS10179175B2Isatoic anhydride derivatives and applications thereof
Publication Date: 2019.01.15 THE UNIV OF NORTH CAROLINA AT CHAPEL HILL
  • US10179175B2 patent drawing
  • US10179175B2 patent drawing
  • US10179175B2 patent drawing

AI summary

Isatoic anhydride derivatives having an N-substituent which includes a quaternary ammonium group are useful for labeling and/or functionalizing a target material and/or for coupling materials together. The isatoic anhydride derivatives of the present disclosure can be advantageously water soluble, easily prepared and purified. Isatoic anhydride derivatives useful in the present disclosure preferably have at least one chemically reactive group or at least one binding group or at least one detectable label. Anthranilate derivatives made from the isatoic anhydrides derivatives or otherwise and kits including the isatoic anhydride derivatives are also disclosed.