FK506 Purification via Silver Ion Extraction
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Solution Overview
Problem
Current methods for purifying FK506, such as column chromatography, are economically disadvantageous due to high costs and time consumption, and often result in low purification yields, as they require expensive resins and large amounts of organic solvents.
Innovation Solution
A method using a silver ion solution to separate lactone compounds with unsaturated and saturated alkyl groups based on their differing physical properties, such as solubility and crystallization, eliminating the need for column chromatography and expensive resins, and allowing for selective extraction and purification of FK506.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If column chromatography is used to purify FK506, then purification effectiveness is improved, but cost and time consumption increase significantly
Solution Approach 1:
The invention changes the chemical parameter of the system by introducing silver ions that selectively complex with FK506, transforming the purification mechanism from physical adsorption to chemical complexation. This allows for faster separation while maintaining high purity, resolving the contradiction between purification effectiveness and time consumption
Solution Approach 2:
Silver ions act as an intermediary substance that mediates the separation between FK506 and impurities. The silver-FK506 complex formed serves as an intermediate state that facilitates selective extraction, achieving both high purification effectiveness and reduced processing time
2Manufacturing precision
If column chromatography with expensive resins is used, then purification effectiveness is improved, but manufacturing cost increases
Solution Approach 1:
The invention replaces expensive, reusable resin materials with a cost-effective silver ion solution that can be used in a single extraction process. The silver ion solution, being inexpensive and easily replaceable, eliminates the need for costly resin materials while achieving the same purification effectiveness
Solution Approach 2:
The invention changes the material parameter from organic resin to inorganic silver ion solution, fundamentally altering the cost structure of the purification process while maintaining or improving purification effectiveness through selective chemical complexation
3Manufacturing precision
If large amounts of organic solvents are used in purification, then purification effectiveness is improved, but environmental harm and cost increase
Solution Approach 1:
The invention changes the solvent parameter from large amounts of organic solvent to a small volume of aqueous silver ion solution. This parameter change reduces environmental harm while maintaining purification effectiveness through the high selectivity and binding affinity of silver ions for FK506
Solution Approach 2:
The invention substitutes the mechanical separation process requiring large solvent volumes with a chemical complexation process using minimal silver ion solution. This substitution reduces both environmental impact and cost while achieving superior 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 reduces purification time and costs, increases production yield, and enables easy and economical purification of FK506 without the need for chromatography or carriers, using a reusable silver ion solution and minimal solvents.
Implementation Method 1
a method for purifying FK506, the method consisting of: dissolving a mixture of FK506 and lactone compounds having a saturated alkyl group in a water-miscible organic solvent to prepare a solution of the lactone compounds... adding an aqueous silver ion (Ag +) solution to the solution... to selectively extract FK506 having an affinity for the silver ions
Data Source
Figure 1~2
AI summary
The present invention relates to a method for separating and purifying a lactone compound with an unsaturated alkyl group from a lactone compound with a saturated alkyl group which is an analog thereof. More specifically, the present invention relates to a method for effectively separating a lactone compound with an unsaturated alkyl group such as FK506 at high purity by extraction with a silver ion (Ag+) solution without use of column chromatography.