O-Substituted Hydroxyalkyl Retinoid Ligands for Water Solubility
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Solution Overview
Problem
Existing retinoid compounds have limited solubility in water, which hampers their effectiveness as medicinal or cosmetic products due to suboptimal physicochemical and pharmacokinetic properties, making it difficult to formulate them into effective compositions for dermatological and cosmetic applications.
Innovation Solution
Development of novel retinoic acid receptor-activating ligands with an O-substituted hydroxyalkyl radical on the aromatic ring, enhancing water solubility and incorporating specific structural features such as alkyl and alkoxy substituents, leading to improved formulation and application in pharmaceutical and cosmetic compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If retinoid compounds are used in traditional formulations, then they exhibit biological activity in cell proliferation and differentiation, but they have limited solubility in water which hampers their effectiveness
Solution Approach 1:
The patent modifies the chemical structure of retinoid compounds by introducing an O-substituted hydroxyalkyl radical on the aromatic ring. This structural parameter change enhances water solubility while preserving the compound's ability to activate RAR receptors and exhibit biological activity in cell proliferation and differentiation processes.
Solution Approach 2:
The invention creates composite molecular structures combining the retinoid core with hydroxyalkyl substituents. This composite approach integrates the bioactive retinoid framework with water-soluble hydroxyalkyl groups, achieving both biological efficacy and improved solubility properties for pharmaceutical and cosmetic formulations.
2Reliability
If retinoid compounds with traditional structures are used, then they show pharmacological effects, but they have suboptimal physicochemical and pharmacokinetic properties
Solution Approach 1:
The patent systematically modifies physicochemical parameters of retinoid compounds through structural optimization. By introducing O-substituted hydroxyalkyl radicals with varying chain lengths and substitution patterns, the invention achieves optimal balance between solubility, stability, and pharmacokinetic properties while maintaining pharmacological activity.
3Reliability
If traditional retinoid compounds are formulated, then they provide therapeutic benefits, but they are difficult to formulate into effective compositions
Solution Approach 1:
The enhanced water solubility achieved through O-substituted hydroxyalkyl substitution directly improves formulation characteristics. The modified compounds can be more easily incorporated into aqueous-based pharmaceutical and cosmetic compositions, expanding formulation options and simplifying manufacturing processes while maintaining therapeutic efficacy.
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 novel compounds demonstrate enhanced solubility and efficacy as RAR-type receptor activators, suitable for treating various dermatological, cosmetic, and medical conditions, including acne, psoriasis, and skin aging, with improved bioavailability and skin surface enhancement.
Implementation Method 1
containing an O-substituted hydroxyalkyl radical on the aromatic ring, allowing greater solubility in water
Data Source
AI summary
Novel ligand compounds having the structural formula (I):in which:Ar is a radical selected from among the radicals of formulae (a)-(c) below:are formulated into pharmaceutical compositions suited for administration in human or veterinary medicine, or, alternatively into cosmetic compositions.