Crystalline 3-Substituted 1,2,4-Oxadiazole Polymorphs for Stability
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Solution Overview
Problem
There is a need for improved compositions and methods for preparing and formulating 3-substituted 1,2,4-oxadiazole compounds, which act as immunomodulators, to enhance their therapeutic benefits in treating cancer, immune disorders, and other conditions.
Innovation Solution
A crystalline compound with the structure of formula (I) is developed, which can be used in pharmaceutical preparations along with pharmaceutically acceptable excipients. The compound exists in different polymorphic forms, such as Form 1 and Form 2, which are characterized by specific XRD patterns and thermal analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 3-substituted 1,2,4-oxadiazole compounds are used as immunomodulators, then therapeutic benefits are achieved, but stability and solubility need improvement
Solution Approach 1:
The patent applies parameter changes by developing specific crystalline forms (polymorphs) of the 3-substituted 1,2,4-oxadiazole compounds. Different crystal structures (Form 1, Form 2, etc.) with distinct XRD patterns and thermal properties are created to optimize both stability and solubility parameters simultaneously
Solution Approach 2:
The patent creates composite pharmaceutical formulations by combining the crystalline compound forms with pharmaceutically acceptable excipients. This composite approach enhances the therapeutic benefits while maintaining improved stability and solubility characteristics
2Reliability
If crystalline forms are developed to improve stability, then therapeutic effectiveness increases, but formulation complexity increases
Solution Approach 1:
The patent segments the compound into distinct crystalline forms (polymorphs) with specific identification characteristics such as unique XRD patterns and thermal analysis profiles. This segmentation allows for standardized formulation approaches for each form, reducing overall formulation complexity despite the multiple forms available
Data Source
AI summary
The invention relates to crystalline forms of a 3-substituted 1,2,4-oxadiazole compound, methods of their preparation, and related pharmaceutical preparations thereof. The invention also relates to preparations suitable for pharmaceutical, veterinary, and agriculturally-relevant uses.