Four new fluorenone alkaloids and one new dihydroazafluoranthene alkaloid from Caulophyllum robustum Maxim

  • Fitoterapia. 2011 Sep;82(6):793-7. doi: 10.1016/j.fitote.2011.04.010.
Xiao-Ling Wang  1 ,  Bing-Rui Liu ,  Chien-Kuang Chen ,  Jun-Ru Wang ,  Shoei-Sheng Lee
Affiliations
  • 1. Key Laboratory of Phytochemistry of Shaanxi Province, Baoji University of Arts and Sciences, Baoji 721013, China. [email protected]
PMID: 21596111 DOI: 10.1016/j.fitote.2011.04.010
Abstract

Four new fluorenone Alkaloids, caulophylline A-D (1-4), and one new dihydroazafluoranthene alkaloid, caulophylline E (5) were isolated from the roots of Caulophyllum robustum Maxim. Their structures were elucidated by spectroscopic analysis. Among the isolated Alkaloids, Caulophylline E showed good scavenging effects against DPPH radical with IC(50) of 39 μM.

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