Piperidylindole Salt Crystal Forms for Stable Complement Modulators
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Solution Overview
Problem
Current therapies lack effective small molecules to modulate the complement pathway, leading to unmet needs for treating diseases associated with dysregulation of complement pathways.
Innovation Solution
Development of acid salts of piperidylindole compounds in specific crystal forms, such as hydrobromide, hydrochloride, and other organic acid salts, which can modulate factor B and regulate complement pathway activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If piperidylindole compounds are developed to modulate the complement pathway, then therapeutic potential for treating complement-related diseases is achieved, but stability and ease of handling of the compound formulations remain challenging
Solution Approach 1:
The patent applies parameter changes by converting the piperidylindole compound into different salt forms (hydrochloride, hydrobromide, sulfate, nitrate, perchlorate, trifluoroacetate salts) to modify its physical and chemical properties. This transformation maintains the therapeutic efficacy of the parent compound while significantly improving stability, solubility, and ease of handling. The salt formation process changes the molecular parameters such as crystallinity, melting point, and hygroscopicity, making the compound suitable for pharmaceutical formulation and storage.
2Ease of operation
If new crystal forms of piperidylindole compounds are created, then ease of handling and filtration is improved, but development time and complexity increase
Solution Approach 1:
The patent employs preliminary action by pre-establishing multiple stable salt forms and crystal structures of the piperidylindole compound during the drug development phase. By anticipating future formulation and manufacturing needs, the inventors have prepared various salt forms with different properties (solubility, stability, crystallinity) that can be directly used in pharmaceutical formulations. This preliminary preparation eliminates the need for time-consuming formulation development later and streamlines the path from compound to medicine.
Data Source
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AI summary
The present invention relates to a salt of a piperidylindole compound, and a preparation method therefor and a medical use thereof. The present invention specifically relates to a salt of a compound as shown in general formula (I) and a crystal form, a preparation method, a pharmaceutical composition containing a therapeutically effective amount of the crystal form, and a pharmaceutical use thereof for treating diseases or conditions.