Mixed Oxybate Salt Preparation Process Scalability
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Solution Overview
Problem
Current methods for preparing oxybate salts lack simplicity, cost-effectiveness, and scalability, which are essential for industrial applications and achieving significant therapeutic potential.
Innovation Solution
A scalable process involving the mixing of oxybate salts in a solvent system at controlled temperatures, followed by filtration and washing, to produce a mixture of sodium, potassium, magnesium, and calcium oxybate salts with specific weight percentages, and their polymorphs, using suitable solvents such as water, ethanol, and chloroform.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional methods are used to prepare oxybate salts, then the process can be performed, but the process lacks simplicity, cost-effectiveness, and scalability
Solution Approach 1:
The patent combines multiple oxybate salts (sodium, potassium, magnesium, and calcium oxybate) into a single mixed salt preparation process. This merging of multiple separate salt preparations into one unified process simultaneously improves simplicity by reducing the number of separate manufacturing steps and enhances scalability by enabling industrial-scale production of the mixed salt composition in a single operation.
2Ease of manufacture
If conventional methods are used to prepare oxybate salts, then the salts can be produced, but the process is not cost effective
Solution Approach 1:
The patent employs preliminary action by conducting the reaction of gamma-butyrolactone with a mixture of bases (sodium hydroxide, potassium hydroxide, magnesium hydroxide, and calcium hydroxide) all at once in a single reaction vessel. This preliminary combined reaction approach reduces subsequent purification steps and processing time, thereby lowering manufacturing costs while maintaining the required purity through controlled reaction conditions and a single filtration step to remove insoluble salts.
3Adaptability or versatility
If multiple separate preparation methods are used for each oxybate salt, then individual salts can be prepared, but the process complexity increases
Solution Approach 1:
The patent achieves universality by developing a single multi-functional preparation process that can produce a mixture of four different oxybate salts (sodium, potassium, magnesium, and calcium) simultaneously using one reaction system. This universal process eliminates the need for four separate preparation methods and associated equipment, thereby reducing process complexity while maintaining the versatility to prepare the mixed salt composition with controlled ratios of each component.
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
This process enables the cost-effective and scalable preparation of oxybate salts and their polymorphs, ensuring high purity and therapeutic efficacy for treating conditions like cataplexy and excessive daytime sleepiness.
Implementation Method 1
contacting gamma-butyrolactone (GBL) with two or more bases selected from the group consisting of sodium hydroxide (NaOH), potassium hydroxide (KOH), magnesium hydroxide (Mg(OH)2), and calcium hydroxide (Ca(OH)2), in a single reaction vessel under conditions sufficient to produce a mixture of two or more salts
Implementation Method 2
The resulting reaction mixture is filtered to afford the desired mixed salts of gamma-hydroxybutyrate
Data Source
AI summary
The present invention provides an improved scalable process for preparation of mixed oxybate salts. More particularly, the present invention provides a process of preparation of a mixture of sodium, potassium, magnesium and calcium oxybate salts. Further, the present invention provides polymorphs of each of the individual salts and the mixed salt along with the methods of preparation of each.