Macroporous Resin Purification of Cyclic Lipopeptides
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Solution Overview
Problem
Current methods for purifying the cyclolipopeptide compound of Formula I are inefficient due to the use of large amounts of organic solvents and silica gel, leading to environmental pollution and unsuitability for large-scale production, while also failing to achieve high purity.
Innovation Solution
A process involving loading crude compound Formula I onto a macroporous adsorption resin, followed by washing and elution using water or a mixed solvent solution, utilizing resins such as XAD-16 or SP207, which reduces solvent usage and improves purity without the need for silica gel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If active coal column and silica gel column are used for purification, then the purity of compound Formula I is improved, but the amount of organic solvent increases and the materials cannot be recycled
Solution Approach 1:
The patent changes the purification parameters by replacing traditional silica gel and active coal columns with macroporous adsorption resin columns. This substitution allows for reduced organic solvent usage while maintaining purification effectiveness, and the macroporous resin can be regenerated and reused, addressing both purity requirements and substance loss concerns
Solution Approach 2:
The patent implements a recovery system where the macroporous adsorption resin, after purification, is regenerated through washing and drying processes. This allows the adsorbent material to be recovered and reused multiple times, eliminating the need to discard expensive adsorbents and reducing waste
2Quantity of substance
If great amount of organic solvent and silica gel are used, then the purification capacity is improved, but the environmental pollution increases and it is harmful to operators
Solution Approach 1:
The patent modifies the purification system parameters by replacing silica gel with macroporous adsorption resin and reducing organic solvent quantities. This parameter change maintains adequate purification capacity while significantly reducing environmental pollution and health hazards associated with large amounts of organic solvents and silica dust
Solution Approach 2:
The patent replaces expensive, non-recoverable materials (silica gel, active coal) with more economical, regenerable macroporous resin. This substitution reduces the need for continuous disposal and replacement of purification materials, thereby reducing environmental impact and operational costs
3Manufacturing precision
If traditional purification method is used, then the purification effect is achieved, but it is not suitable for large-scale production due to high solvent consumption
Solution Approach 1:
The patent optimizes purification parameters for large-scale production by using macroporous adsorption resin columns with controlled flow rates and solvent concentrations. This approach maintains effective purification while reducing solvent consumption to levels suitable for economical large-scale manufacturing
Solution Approach 2:
The patent implements preliminary concentration of the crude solution before loading onto the macroporous resin column. This preliminary action reduces the volume of solution requiring purification, thereby reducing solvent consumption and making the process more suitable for large-scale production while maintaining purification effectiveness
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 method effectively purifies the compound with minimal solvent use, reducing environmental impact and enabling high-purity production suitable for large-scale production while maintaining high yields and purity levels.
Implementation Method 1
loading the crude compound of Formula I onto a macroporous adsorption resin
Implementation Method 2
washing the macroporous adsorption resin using water, an organic solvent or a mixed solution of an organic solvent and water as the washing liquid
Implementation Method 3
eluting the compound of Formula I from the macroporous adsorption resin using water, an organic solvent or a mixed solution of an organic solvent and water as eluent
Data Source
Figure 1~2
AI summary
A process for purifying cyclic lipopeptide compounds or salts thereof comprising the steps of: (1) charging a crude compound of Formula I onto a macroporous adsorption resin; (2) washing the macroporous adsorption resin using water, an organic solvent or a mixed solution of an organic solvent and water as a washing liquid; and (3) eluting the compound of Formula I from the macroporous adsorption resin using water, an organic solvent or a mixed solution of an organic solvent and water as an eluent. The purification method has the advantages of using a small amount of organic solvents, using no silica gel, and causing little damage to the environment; the purity of the collected compound of formula I is also improved as compared with the methods previously disclosed.