Chromane-3-carboxamide compounds for retinal precursor cell regeneration
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Solution Overview
Problem
Current treatments for neuroretinal diseases like retinitis pigmentosa focus on managing symptoms rather than reversing retinal damage or restoring vision by regenerating retinal cells.
Innovation Solution
A compound of formula (I) that selectively activates mammalian retinal precursor cells, promoting their proliferation and enabling controlled repair and regeneration of the retina, thereby potentially restoring vision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current therapeutic strategies are used to control neuroretinal diseases, then the progression of the disease can be managed, but retinal cell damage cannot be reversed and vision cannot be restored
Solution Approach 1:
Instead of trying to protect existing retinal cells from damage, the invention inverts the approach by stimulating the proliferation and differentiation of retinal precursor cells to regenerate lost retinal cells. This shifts the therapeutic strategy from prevention to regeneration, directly addressing the irreversible nature of current treatments.
2Adaptability or versatility
If compounds that stimulate neuronal stem cells are used, then adult neuronal stem cells can be activated, but retinal precursor cells are not effectively stimulated
Solution Approach 1:
The invention applies local quality by designing a compound with specific molecular structure (formula I) that targets retinal precursor cells specifically rather than generally stimulating all neuronal stem cells. The compound's selective action on retinal precursor cells distinguishes it from previous broad-spectrum stem cell stimulants, enabling precise regeneration of the needed cell type.
3Object-generated harmful factors
If retinal cell regeneration is achieved through compound administration, then vision restoration becomes possible, but the complexity of the treatment protocol increases
Solution Approach 1:
The invention enables self-service by stimulating the body's own retinal precursor cells to proliferate and differentiate into functional retinal cells. This endogenous regeneration approach eliminates the need for complex external interventions such as cell transplantation surgery, making the treatment protocol simpler and more self-contained while achieving vision restoration.
Data Source
AI summary
Compounds and a method of treating a retinal disease that leads to photoreceptor loss or outer-retina degeneration, including administering compound of the formula (I)or a pharmaceutically acceptable salt, a racemic mixture, a corresponding enantiomer or, if applicable, a corresponding diastereomer thereof, wherein: A is selected from 5-oxazolyl, pyridine-4-yl, triazolyl, oxadiazolyl, imidazolyl and 2-methyloxazol-5-yl residue, R1, and R12 are independently selected from hydrogen, fluoro, chloro, methoxy, trifluoromethyl, methyl and difluoromethoxy, B is selected from a residue of formulae (II)-(IX)wherein,“*” denotes the point of attachment to the remainder of the molecule, andR2, R3, R4, R5, R2I, R3I, R4I, R5I, R2II, R3II, R4II, R5II, R2III, R3III, R4III, R5III, R2IV, R3IV, R4IV, R5IV, R2V, R3V, R4V, R5V, R2VI, R3VI, R4VI, R5VI, R2VII, R3VII, R4VII, and R5VII are independently selected from hydrogen, linear or branched alkyl having 1-3 carbon atoms, fluoro, chloro, bromo, methoxy, ethoxy, propoxy, 2,2,2-trifluoromethyl and difluoromethoxy.