Antifungal Compound 1 Synthesis via Local Quality
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Solution Overview
Problem
Current antifungal agents, such as fluconazole and voriconazole, face challenges in achieving a balance between potency and selectivity due to indiscriminate metal-binding, leading to off-target inhibition of metalloenzymes, resulting in clinical toxicity and undesirable side effects.
Innovation Solution
A process for synthesizing compound 1 and its derivatives, involving reactions with morpholine amides and subsequent transformations to form specific chemical bonds with metalloenzymes, enhancing affinity and selectivity through sigma, covalent, coordinate-covalent, ionic, pi, delta, or backbonding interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tightly binding metal-binding group (such as 1-(1,2,4-triazole) or hydroxamic acid) is utilized to increase potency, then the enzyme inhibition activity is improved, but selectivity for the target enzyme versus related metalloenzymes deteriorates, leading to off-target inhibition and clinical toxicity
Solution Approach 1:
The patent applies local quality by designing metal-binding groups with specific local chemical characteristics (such as piperazine, piperidine, or morpholine rings with particular substituent patterns) that create a unique binding environment. This local structural differentiation allows the inhibitor to recognize and bind selectively to the target metalloenzyme's active site while avoiding off-target metalloenzymes, thus resolving the contradiction between potency and selectivity
Solution Approach 2:
The patent employs parameter changes by systematically varying key molecular parameters of the metal-binding groups, including ring substitution patterns, substituent types and positions, and overall molecular geometry. These parameter modifications tune the binding affinity and selectivity characteristics, enabling optimization of both potency against the target enzyme and selectivity to avoid off-target inhibition
2Object-affected harmful factors
If a weakly binding metal-binding group is utilized to improve selectivity, then off-target inhibition is reduced, but potency against the target enzyme becomes suboptimal
Solution Approach 1:
The patent applies composite materials by combining the metal-binding group with specific cyclic amine structures (piperazine, piperidine, morpholine) and various substituents to create a composite molecular architecture. This composite structure provides both strong binding capability for the target enzyme and selective recognition features, simultaneously achieving high potency and high selectivity without compromising either property
3Adaptability or versatility
If indiscriminate metal-binding groups are used to achieve broad enzyme coverage, then potential antifungal activity is improved, but clinical toxicity increases due to inhibition of off-target metalloenzymes such as CYP2C9, CYP2C19, and CYP3A4
Solution Approach 1:
The patent applies segmentation by dividing the metal-binding functionality into distinct modular components (different cyclic amine cores with specific substituents). Each module has tailored binding characteristics that can be selected or combined to achieve the desired balance between broad antifungal coverage and minimal off-target effects, thereby reducing clinical toxicity while maintaining versatility
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
The process improves the balance of potency and selectivity, reducing the risk of off-target inhibition and clinical toxicity, thereby providing a more effective and safer antifungal agent.
Implementation Method 1
compound 1 binds to the heme iron present in the active site of the target enzyme lanosterol demethylase and thereby inactivates the enzyme
Implementation Method 2
involving reactions with morpholine amides and subsequent transformations to form specific chemical bonds with metalloenzymes, enhancing affinity and selectivity through sigma, covalent, coordinate-covalent, ionic, pi, delta, or backbonding interactions
Data Source
AI summary
The present invention relates to a process for preparing compound 1 that is useful as an antifungal agent. In particular, the invention seeks to provide new methodology for preparing compound 1 and substituted derivatives thereof.