Indole-Pyridinecarboxamide Derivatives as Tyrosine Hydroxylase Inducers
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Solution Overview
Problem
Current compounds with eburnane structures, despite their vasodilatory properties, lack effective pharmacological agents that induce tyrosine hydroxylase, a crucial enzyme for neurotransmitter synthesis, addressing various behavioral and neurodegenerative disorders.
Innovation Solution
Development of new H-indole-pyridinecarboxamides and H-indole-piperidinecarboxamide derivatives with specific structural modifications, including various substituents and functional groups, which act as potent inducers of tyrosine hydroxylase, offering therapeutic potential for depression, anxiety, memory disorders, and neurodegenerative diseases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If eburnane structure compounds are used for vasodilatory properties, then vasodilation effect is achieved, but tyrosine hydroxylase induction capability is lacking
Solution Approach 1:
The patent applies parameter changes by systematically modifying the chemical structure of eburnane compounds through substitution at positions 14 and 15 with various functional groups (methoxy, hydroxy, carboxyl, amino groups) and by introducing nitrogen-containing heterocyclic rings. These structural parameter changes transform the compounds from having only vasodilatory properties to possessing both vasodilatory and tyrosine hydroxylase induction capabilities, thereby resolving the contradiction between reliability of TH induction and adaptability of pharmacological activity.
2Reliability
If new indole-pyridinecarboxamide and indole-piperidinecarboxamide derivatives are developed, then tyrosine hydroxylase induction potency is improved, but structural complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the complex molecule into distinct functional modules: an indole core structure, a pyridinecarboxamide or piperidinecarboxamide substituent group, and various optional functional groups at positions 14 and 15. This modular segmentation allows for systematic optimization of tyrosine hydroxylase induction potency while managing structural complexity through combinatorial chemistry approaches, where each module can be independently varied to achieve desired biological activity.
Data Source
AI summary
The invention relates to compounds of formula (I) in whichA represents a bivalent radical in which Z represents an oxygen atom or a sulfur atoms; R6 represents a hydrogen atom, an alkyl, alkenyl, arylalkyl or polyhalogen alkyl group or a substituted linear or branched alkyl chain, ------- represents a single bond or a double bond; R1, R2, R3, R4 represent a hydrogen or halogen atom, an alkyl, alkoxy, hydroxy, cyano, nitro or polyhalogenoalkyl group, or an optionally substituted amino, alkenyl or a linear or branched alkyl chain substituted by one or more groups; R5 represents a hydrogen atom, an alkyl, aminoalkyl or hydroalkyl group; X, Y represent a hydrogen atom or an alkyl group; Ra, Rb, Rc, Rd represent a hydrogen or halogen atom, an alkyl, hydroxy, alkoxy, cyano, nitro or polyhalogenoalkyl group, an optionally substituted amino, alkyl or a substituted linear or branched alkyl chain; Re represents a hydrogen atom or an alkyl, arylalkyl or alkenyl group or a substituted linear or branched alkyl chain, their enantiomers, diastereoisomers, N-oxides, as well as their pharmaceutically acceptable acid or base addition salts. The invention also relates to corresponding medicaments.