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Orally active PDE4 inhibitors with therapeutic potential
Hiroshi Ochiai1, Tazumi Ohtani, Akiharu Ishida
1Minase Research Institute, Ono Pharmaceutical Co. Ltd., 3-1-1 Sakurai, Shimamoto, Mishima, Osaka 618-8585, Japan.
Bioorganic & Medicinal Chemistry Letters
|February 26, 2004
Summary
Researchers optimized Ariflo drug candidates by altering pharmacophore arrangements using a bicyclo[3.3.0]octane template. New compounds showed oral activity and enhanced therapeutic potential in cross-species evaluations.
Area of Science:
- Medicinal Chemistry
- Pharmacology
- Drug Discovery
Background:
- Ariflo demonstrated successful clinical trial outcomes.
- Optimization of Ariflo 1's pharmacophore spatial arrangement was pursued.
- A bicyclo[3.3.0]octane template replaced the cyclohexane template.
Purpose of the Study:
- To optimize the spatial arrangement of pharmacophores in Ariflo analogs.
- To identify novel orally active compounds with improved therapeutic potential.
- To explore structure-activity relationships (SARs) of new Ariflo derivatives.
Main Methods:
- Modification of the Ariflo scaffold using a bicyclo[3.3.0]octane template.
- Synthesis of novel chemical entities (compounds 2a, 7a, 7b).
- Inclusion of cross-species and same-species comparative evaluations.
Main Results:
- Compounds 2a, 7a, and 7b exhibited oral activity.
- These novel compounds were predicted to possess enhanced therapeutic potential.
- Structure-activity relationships were elucidated for the newly synthesized compounds.
Conclusions:
- The bicyclo[3.3.0]octane template facilitates the development of orally active Ariflo analogs.
- Optimized spatial arrangements of pharmacophores can lead to improved therapeutic efficacy.
- Further investigation into these compounds is warranted for potential therapeutic applications.