Antimicrobial Peptidomimetics for Resistant Bacteria
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The emergence of multi-drug-resistant bacteria, such as MRSA, poses a significant health concern due to the lack of new antibiotics, with only a few new chemical scaffolds being developed in recent decades, necessitating the development of new antibacterial classes.
Innovation Solution
Development of novel compounds with the formula (I) and its analogues, which exhibit potent bactericidal activities against MRSA and other bacterial infections, including skin infections and respiratory diseases, through specific synthetic processes involving amide/peptide coupling reactions and deprotection steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If new antibiotics are developed to treat multi-drug-resistant bacteria, then bacterial infection treatment effectiveness is improved, but the complexity of drug development and synthesis increases
Solution Approach 1:
The patent divides the complex molecule into modular components (peptidomimetic core structure with formula I, various substituent groups R1-R6, and linkers L1-L3) that can be synthesized separately and assembled through standardized coupling reactions, reducing overall synthesis complexity while maintaining potent antibacterial activity against resistant strains
Solution Approach 2:
The patent systematically varies chemical parameters (substituent types, linker lengths, core structure modifications) to optimize both antibacterial efficacy and synthesis feasibility, creating a library of analogues with different properties that can be evaluated for treatment effectiveness without requiring completely new synthesis pathways
2Reliability
If complex peptidomimetic structures are synthesized to achieve potent bactericidal activity, then antibacterial efficacy is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs protecting group strategies (pre-installed protective groups on functional groups) and pre-synthesized building blocks with standardized coupling sites, allowing complex peptidomimetic structures to be assembled step-by-step with controlled precision requirements at each stage rather than requiring high precision in a single synthesis step
Solution Approach 2:
The patent uses amide and peptide coupling reagents as intermediaries to join molecular components, providing standardized, well-characterized reaction conditions that reduce the precision requirements for forming complex molecular structures while maintaining the integrity and activity of the final peptidomimetic compound
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
The present invention relates to peptidomimetics of the formula (I) or (I)c wherein L1, L2, L3, R1, R2, R3, R4, R5, R6, n, m, Q, X, Ζ1 and Z2 are defined as mentioned in the description and to salts and solvates of each of these compounds and to processes for the preparation thereof, compositions containing them and the uses of such compounds. It has been found that the compounds have a high microbicide activity and are suited to combat resistant bacteria, such as meticillin-resistant Staphylococcus aureus (MRSA) strains, at very low concentrations.