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Spasmolytic activity of aurapten analogs
Y Yamada1, M Okamoto, H Kikuzaki
1Department of Food Science and nutrition, Faculty of Human Life and Science, Doshisha Women's College, Kyoto, Japan.
Bioscience, Biotechnology, and Biochemistry
|April 1, 1997
Summary
Seven new coumaric compounds were synthesized and tested for spasmolytic activity. The study found that a cis double bond and an epoxide group are crucial for their effectiveness in relaxing smooth muscles.
Area of Science:
- Medicinal Chemistry
- Pharmacology
- Organic Synthesis
Background:
- Aurapten is a natural coumarin with known biological activities.
- Understanding structure-activity relationships (SAR) is key to developing new therapeutic agents.
- Spasmolytic agents are important for treating conditions involving smooth muscle spasms.
Purpose of the Study:
- To synthesize novel coumaric compounds analogous to aurapten.
- To evaluate the spasmolytic activity of these synthesized compounds.
- To elucidate the structure-activity relationship (SAR) of these compounds.
Main Methods:
- Chemical synthesis of seven coumaric compounds.
- In vitro bioassay to assess spasmolytic activity against Ba2+, acetylcholine, and histamine.
- Analysis of SAR based on bioassay results.
Main Results:
- The synthesized coumaric compounds exhibited varying degrees of spasmolytic activity.
- The presence of a cis double bond at the C-2' position was found to be important for activity.
- An epoxide group between the C-6' and C-7' positions significantly enhanced spasmolytic effects.
Conclusions:
- The study successfully identified key structural features responsible for the spasmolytic activity of coumaric compounds.
- The cis double bond and epoxide moiety are critical for potent spasmolytic action.
- These findings provide a basis for designing more effective spasmolytic drugs based on the coumaric scaffold.