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[Antimycobacterial acting 2-hydroxyquinolizin-4-ones]
G Dannhardt1, T Kappe, W Meindl
1Institut für Pharmazeutische Chemie der Johann Wolfgang Goethe-Universität Frankfurt.
Archiv Der Pharmazie
|June 1, 1990
Summary
Researchers synthesized novel quinolizinone derivatives from ethyl 2-pyridyl acetates and malonates. These compounds demonstrated significant inhibitory activity against Mycobacterium tuberculosis H37Ra.
Area of Science:
- Organic Chemistry
- Medicinal Chemistry
- Pharmacology
Context:
- Quinolizinones are a class of heterocyclic compounds with diverse biological activities.
- Ethyl 2-pyridyl acetates and activated malonates are versatile building blocks in organic synthesis.
Purpose:
- To synthesize novel quinolizinone derivatives.
- To evaluate the antimycobacterial activity of these compounds.
- To explore structure-activity relationships for improved efficacy.
Summary:
- The reaction of ethyl 2-pyridyl acetates with activated malonates yielded 1-ethoxycarbonyl-2-hydroxy-quinolizin-4-ones.
- Hydrolysis and decarboxylation provided C-1 unsubstituted derivatives.
- Catalytic hydrogenation afforded the corresponding tetrahydro derivatives.
- These synthesized quinolizinone derivatives exhibited significant inhibitory effects against Mycobacterium tuberculosis H37Ra.
Impact:
- This study introduces a new synthetic route to quinolizinone derivatives.
- The identified compounds show potential as leads for developing new anti-tuberculosis drugs.
- Understanding the structure-activity relationship can guide the design of more potent antimycobacterial agents.