Archives of Pharmacal Research

The Pharmaceutical Society of Korea (대한약학회)
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Acetylcholinesterase Inhibitors from the Aerial Parts of Corydalis speciosa

  • Kim, Dae-Keun (College of Pharmacy, Woosuk University) ;
  • Lee, Ki-Taek (College of Pharmacy, Woosuk University) ;
  • Kim, Sung-Hoon (Graduate School of Biotechnology & Plant Metabolism Research Center, Kyung Hee University) ;
  • Park, Hee-Wook (Department of Oncology, Graduate School of East-West Medical Science, Kyung Hee University) ;
  • Lim, Jong-Pil (College of Pharmacy, Woosuk University) ;
  • Shin, Tae-Yong (College of Pharmacy, Woosuk University) ;
  • Eom, Dong-Ok (College of Pharmacy, Woosuk University) ;
  • Yang, Jae-Heon (College of Pharmacy, Woosuk University) ;
  • Eun, Jae-Soon (College of Pharmacy, Woosuk University) ;
  • Baek, Nam-In (Graduate School of Biotechnology & Plant Metabolism Research Center, Kyung Hee University)
  • Published : 2004.11.01
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Abstract

In a bioassay-guided search for acetylcholinesterase inhibitors from Korean natural resources, four isoquinoline alkaloids, corynoxidine (1), protopine (2), palmatine (3), and berberine (4) have been isolated from the methanolic extract of the aerial parts of Corydalis speciosa. Structures of these compounds were elucidated on the basis of spectroscopic techniques. These compounds inhibited acetylcholinesterase activity in a dose-dependent manner, and the $IC_50$ values of compounds 1-4 were 89.0, 16.1, 5.8, and 3.3 $\mu$ M, respectively.

Keywords

References

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