Pentafluorophosphate Derivatives for Protein Tyrosine Phosphatase Inhibition

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Solution Overview

Problem

Current protein tyrosine phosphatase inhibitors lack effective binding and stability, limiting their clinical use and cellular penetration, necessitating the development of novel inhibitors with improved properties.

Innovation Solution

The development of pentafluorophosphate derivatives with specific structural features, such as alkyl and aryl chains interrupted by oxygen, sulfur, and nitrogen atoms, which exhibit enhanced binding and inhibition properties, including increased stability and cell penetration, enabling better interaction with protein tyrosine phosphatases.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional phosphatase inhibitors are used, then binding to the active site is achieved, but stability and cellular penetration are insufficient

Engineering Contradiction:
Improvebinding stabilityVSAvoidcompound stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent changes the chemical parameters of the phosphatase inhibitor by introducing a pentafluorophosphate group instead of conventional phosphate or phosphonate groups. This parameter change results in enhanced binding stability and compound stability while maintaining phosphotyrosine mimicry. The specific chemical modification (PF5 group) directly addresses the stability issues of conventional inhibitors.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If conventional phosphatase inhibitors are used, then enzyme inhibition is achieved, but cell penetration ability is limited

Engineering Contradiction:
Improveinhibition effectivenessVSAvoidcellular penetration
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent modifies the physical-chemical parameters of the inhibitor compound by incorporating the pentafluorophosphate group, which changes the hydrophilicity and membrane permeability characteristics. This parameter change enables the inhibitor to penetrate cell membranes effectively while maintaining its phosphatase inhibition capability.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If existing phosphatase inhibitors are used, then therapeutic effect is achieved, but delivery to site of action is insufficient

Engineering Contradiction:
Improvetherapeutic efficacyVSAvoiddelivery efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent changes the pharmacokinetic parameters of the inhibitor by introducing the pentafluorophosphate group, which improves membrane permeability and cellular uptake. This parameter change enhances the delivery efficiency of the inhibitor to the site of action within cells, thereby improving therapeutic efficacy.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11479570B2Pentafluorophosphate derivative, its uses and an appropriate manufacturing method
Publication Date: 2022.10.25 FREE UNIV OF BERLIN
  • US11479570B2 patent drawing
  • US11479570B2 patent drawing
  • US11479570B2 patent drawing

AI summary

It is provided a pentafluorophosphate derivative according to general formula (I):or a pharmaceutically acceptable salt or solvate thereof. Thereby, R1 and R2 denote independently from each other H or F; R3 denotes H, a C1-C10 alkyl optionally substituted by a hydrocarbon chain comprising an amide function and/or a carboxyl function, or by a substituent chosen from the group consisting of alkyl, alkylamino, alkylaminocarboxy, carboxy, alkoxycarbonyl, hydroxy, N-morpholino, N-morpholinoalkyl, N-morpholinocarbonyl, N-methyl-N-piperazinyl, N-methyl-N-piperazinylalkyl, N-methyl-N-piperazinylcarbonyl, and sulfo, an optionally substituted C3-C10 cycloalkyl, or an optionally substituted C6-C20 aryl, wherein a hydrocarbon chain of the alkyl, the cycloalkyl or the aryl can be interrupted by one or more oxygen, sulfur and/or nitrogen atoms; and M denotes any cation; with the proviso that at least one of R1 and R2 denotes F, if R3 denotes H.