Sulfated Hyperbranched Polyester Polyol for Hydrophobic Drug Solubilization
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Solution Overview
Problem
Current pharmaceutical methods face challenges in solubilizing hydrophobic drugs, particularly those with molecular weights greater than 400 Da, due to their poor water solubility, which limits their bioavailability and therapeutic effectiveness, and existing solubilization techniques often rely on harmful substances or organic solvents.
Innovation Solution
The use of sulfated hyperbranched polyester polyol derivatives to solubilize hydrophobic drugs with amine functions under aqueous conditions without organic solvents, enhancing their solubility and bioavailability by forming a negatively charged, hydrophilic surface that traps and delivers these drugs effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydrophobic drugs are used to occupy intracellular receptors, then therapeutic effectiveness is improved, but water solubility deteriorates leading to poor bioavailability
Solution Approach 1:
The patent uses a solubilizing agent as an intermediary substance that forms a complex with the hydrophobic drug molecule. This complex has enhanced water solubility while maintaining the drug's ability to occupy intracellular receptors. The solubilizing agent mediates between the hydrophobic drug and the aqueous environment, enabling the drug to be administered effectively without compromising its therapeutic action.
2Quantity of substance
If traditional solubilization methods using surfactants are employed, then drug solubility is improved, but harmful side effects increase
Solution Approach 1:
The patent changes the chemical parameters of the solubilizing agent by selecting substances with specific properties: low molecular weight (100-1000 Da), appropriate logP values (0.5-3.0), and specific functional groups that enable solubilization without causing allergic reactions. This parameter optimization allows effective solubilization while avoiding the harmful effects associated with traditional surfactants.
3Duration of action of moving object
If macromolecular drugs are used to achieve high drug concentration at receptor site, then circulation half-life is improved, but accessibility to intracellular compartment deteriorates
Solution Approach 1:
The patent applies local quality by using small molecule drugs (100-1000 Da) that have the appropriate size and chemical properties to penetrate cell membranes and reach intracellular receptors. The solubilizing agent is designed with specific local characteristics (functional groups, molecular weight) that enable the drug complex to maintain circulation stability while still allowing cellular uptake, thus achieving both prolonged half-life and intracellular accessibility.
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 approach significantly increases the solubility of hydrophobic drugs, enabling their effective delivery and administration in various dosage forms, including oral and parenteral, while avoiding the use of harmful substances and organic solvents, thereby improving bioavailability and therapeutic efficacy.
Implementation Method 1
forming a negatively charged, hydrophilic surface that traps and delivers these drugs effectively
Implementation Method 2
solubilize hydrophobic drugs with amine functions under aqueous conditions
Data Source
AI summary
It is provided a composition comprising a hyperbranched polyester polyol derivative and a small molecule comprising at least one cyclic amine. The hyperbranched polyester polyol derivative is obtainable by a method comprising the following steps: a) reacting only glycidol and ε-caprolactone at a temperature lying in a range of between 40° C. and 140° C. to obtain a hyperbranched polyester polyol derivative in which caprolactone residues and glycerol residues are randomly arranged; b) reacting the hyperbranched polyester polyol derivative of step a) with a sulfation reagent to obtain a sulfated hyperbranched polyester polyol as hyperbranched polyester polyol derivative.