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Solid-phase Synthesis of [4.4] Spirocyclic Oximes
Published on: February 6, 2019
Synthesis and biological activity of 5-(4-methoxyphenyl)-oxazole derivatives
Daisuke Yamamuro1, Ryuji Uchida1, Masaki Ohtawa1
1Graduate School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.
Abstract:
5-(4'-Methoxyphenyl)-oxazole (MPO), originally reported as a synthetic compound, was isolated from fungal culture broth as an inhibitor of hatch and growth of Caenorhabditis elegans. Nineteen MPO derivatives were chemically synthesized, but showed no effect on C. elegans hatch and growth. These findings strongly suggested that the whole structure of MPO is essential for anti-C. elegans activity.
Insights
The compound 5-(4'-Methoxyphenyl)-oxazole (MPO) inhibits the development of Caenorhabditis elegans. Synthesized MPO derivatives lacked this anti-nematode activity, indicating MPO's entire structure is crucial.
Area of Science:
- Biochemistry
- Molecular Biology
- Nematology
Background:
- 5-(4 '-Methoxyphenyl)-oxazole (MPO) is a synthetic compound with potential biological activity.
- The compound was identified in fungal culture broth.
- Its effects on the nematode Caenorhabditis elegans were investigated.
Purpose of the Study:
- To investigate the biological activity of MPO against Caenorhabditis elegans.
- To determine if synthetic MPO derivatives retain anti-nematode properties.
- To elucidate the structural requirements for MPO's activity.
Main Methods:
- Isolation of MPO from fungal culture broth.
- Chemical synthesis of nineteen MPO derivatives.
- Assessment of MPO and its derivatives for effects on C. elegans hatch and growth.
Main Results:
- MPO was isolated and found to inhibit C. elegans hatch and growth.
- None of the nineteen synthesized MPO derivatives exhibited anti-nematode activity.
- The results indicate a loss of biological function upon structural modification.
Conclusions:
- The whole structure of 5-(4 '-Methoxyphenyl)-oxazole is essential for its anti-C. elegans activity.
- Structural modifications abolish the observed biological effects.
- Further research may focus on understanding the specific structural elements responsible for MPO's bioactivity.
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