N-(2-amino-phenyl)amide HDAC Inhibitors
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Solution Overview
Problem
Current HDAC inhibitors have limitations in identifying potent structural features for effective histone deacetylase inhibition, which is crucial for intervening in cell cycle regulation and treating cell proliferative diseases.
Innovation Solution
Development of N-(2-amino- and hydroxyphenyl)amide compounds and their pharmaceutical compositions that specifically inhibit histone deacetylase enzymes, offering a new approach to modulate histone acetylation levels and impact chromatin structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If known HDAC inhibitors (trichostatin A, SAHA, benzamide derivatives) are used, then histone deacetylase activity is inhibited, but the structural features for potent inhibition are not clearly identified and limited therapeutic efficacy is achieved
Solution Approach 1:
The patent segments the HDAC inhibitor molecule into distinct functional regions (amidine/guanidine group, aromatic ring, linker) to identify which structural features contribute most to potency. This segmentation allows systematic optimization of each region independently to achieve better inhibition efficacy.
Solution Approach 2:
The patent systematically varies chemical parameters such as the type of amidine/guanidine group, aromatic ring substitutions, and linker lengths to identify optimal structural features. By changing these parameters across multiple compounds, the patent identifies structure-activity relationships that lead to potent HDAC inhibition.
2Reliability
If HDAC inhibition is achieved to treat cell proliferative diseases, then gene expression and cell cycle progression are modulated, but current inhibitors have limited therapeutic potential
Solution Approach 1:
The patent uses the HDAC enzyme as an intermediary target to modulate gene expression indirectly. By inhibiting HDAC, the compounds increase histone acetylation levels, which in turn opens chromatin structure and enhances transcription factor access to DNA, thereby modulating gene expression and cell cycle progression.
Solution Approach 2:
The patent optimizes chemical parameters of the inhibitor compounds to achieve better therapeutic efficacy. By varying structural features such as the amidine/guanidine group and aromatic ring substitutions, the patent develops compounds with improved potency and selectivity for HDAC inhibition, leading to enhanced therapeutic potential.
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
These compounds effectively inhibit histone deacetylase activity, providing a therapeutic potential for treating cell proliferative diseases by modulating gene expression and cell cycle progression.
Implementation Method 1
inhibitors of histone deacetylase... N-(2-amino- and hydroxyphenyl)amide compounds... specifically inhibit histone deacetylase enzymes
Data Source
AI summary
The invention relates to the inhibition of histone deacetylase. The invention provides compounds and methods for inhibiting histone deacetylase enzymatic activity. The invention also provides compositions and methods for treating cell proliferative diseases and conditions. One aspect of the invention provides compounds of formula (1): (1), in which T, A and X are as described herein.