Benzylisoquinoline alkaloids with their antitumor activity from the aerial parts of Corydalis impatiens (pall.) Fisch

Fitoterapia. 2024 Jan:172:105738. doi: 10.1016/j.fitote.2023.105738. Epub 2023 Nov 7.

Abstract

Phytochemical investigation on the aerial parts of Corydalis impatiens (pall.) Fisch (Papaveraceae) resulted in the identification of four previous undescribed benzylisoquinoline alkaloids, impatienines A-D (1-4), together with 14 known analogues (5-18). The structures of these compounds were elucidated by extensive spectroscopic analysis (IR, HR-ESIMS, 1D- and 2D-NMR) as well as ECD calculations. All the compounds obtained were investigated for their inhibitory effect on the growth of A549, H1299 and HepG2 cancer cells. Compounds 7 and 15 exhibited pronounced inhibition against the A549 cancer cells with IC50 values of 6.81 μM and 3.17 μM, while the positive control cisplatin was 1.83 μM. Compounds 1-3 showed moderate inhibitory on the H1299 cancer cells. Compounds 4, 10-12, and 16 showed signiffcant activity against HepG2 cancer cells with IC50 values range of 4.41-8.75 μM.

Keywords: Alkaloid; Antitumor activity; Benzylisoquinoline; Corydalis impatiens (pall.) Fisch; Papaveraceae.

MeSH terms

  • Alkaloids* / chemistry
  • Benzylisoquinolines*
  • Corydalis* / chemistry
  • Impatiens*
  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Plant Components, Aerial / chemistry

Substances

  • Benzylisoquinolines
  • Alkaloids