Chiral Synthesis of Methoxypropionic Acid PPAR Modulators
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Solution Overview
Problem
There is a need for effective processes to modulate the activity of Peroxisome Proliferator Activated Receptors (PPARs) to treat diseases such as fibrotic diseases, dyslipidemia, hyperlipidemia, hypercholesteremia, atherosclerosis, atherogenesis, hypertriglyceridemia, heart failure, myocardial infarction, vascular diseases, cardiovascular diseases, hypertension, obesity, inflammation, arthritis, cancer, Alzheimer's disease, skin disorders, respiratory diseases, ophthalmic disorders, irritable bowel disease, ulcerative colitis, and Crohn's disease.
Innovation Solution
A process for preparing compounds that can modulate PPAR receptors, including the synthesis of 3-(4′-aminophenyl)-2-methoxypropionic acid and its analogs, involving steps like reacting a compound of Formula (I) with an activating agent, forming intermediates, hydrolyzing, hydrogenating, and acylating to produce compounds of Formula (VII) with high optical purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional synthesis methods are used to produce PPAR modulators, then the production process is simpler, but the optical purity of the compounds is insufficient
Solution Approach 1:
The patent applies preliminary action by incorporating a chiral auxiliary or chiral catalyst in the early stages of synthesis to establish the desired stereochemistry before the final product formation. This ensures high optical purity is built into the molecular structure during synthesis rather than attempting to achieve it through complex separation processes later.
Solution Approach 2:
The patent utilizes parameter changes by optimizing reaction conditions such as temperature, pressure, solvent selection, and catalyst concentration to achieve high optical purity. By carefully controlling these parameters during key synthesis steps, the method achieves enantiomeric excess without requiring excessively complex purification apparatus.
2Manufacturing precision
If multiple synthesis steps are implemented to achieve high optical purity, then the compound quality improves, but the production time increases
Solution Approach 1:
The patent segments the synthesis into distinct modular steps, each optimized for a specific transformation while maintaining or improving stereochemistry. This allows parallel optimization of individual steps and reduces overall production time compared to attempting a single-step synthesis with equivalent purity.
Solution Approach 2:
The patent maintains continuity of useful action by designing a synthesis route where each step builds upon the previous one without requiring extensive intermediate purification or isolation. The process flows continuously from starting material through intermediate transformations to the final chiral product, minimizing idle time and non-productive operations.
3Manufacturing precision
If extensive purification steps are performed to ensure high optical purity, then the product quality increases, but the manufacturing cost increases
Solution Approach 1:
The patent employs an intermediary chiral auxiliary or chiral catalyst that temporarily introduces stereochemical information during synthesis. This intermediary guides the formation of chiral centers and can be easily removed or transformed in a final step, avoiding the need for complex and expensive chiral separation equipment while achieving high optical purity.
Solution Approach 2:
The patent utilizes parameter changes by optimizing reaction conditions to achieve high stereoselectivity in key transformation steps. By carefully controlling temperature, pressure, solvent, and catalyst parameters, the process achieves high optical purity through selective reaction pathways rather than through extensive purification, thereby reducing manufacturing costs.
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 enables the production of compounds with high optical purity, which can effectively modulate PPAR receptors, potentially providing therapeutic benefits for the mentioned diseases.
Implementation Method 1
hydrogenating, and acylating to produce compounds of Formula (VII)
Data Source
AI summary
The disclosure provides a process for the preparation of 3-(4′-annitophenyl)-2-metlioxypropionic acid, and analogs and intermediates thereof, contemplated to be capable of modulating the activity of receptors, e.g., PPARs receptors.