Cyathocaline, an azafluorenone alkaloid from cyathocalyx zeylanica

E. M. Kithsiri Wijeratne, Leslie B. De Silva, Tohru Kikuchi, Yasuhiro Tezuka, A. A. Leslie Gunatilaka, David G.I. Kingston

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Bioactivity-guided fractionation of a MeOH extract of the stem bark of Cyathocalyx zeylanica afforded a moderately bioactive new azafluorenone alkaloid, cyathocaline, the structure of which was established as 5,7-dihydroxy-6-methoxy-1-methyl-4-azafluoren-9-one [1] with the aid of spectroscopic data.

Original languageEnglish (US)
Pages (from-to)459-462
Number of pages4
JournalJournal Of Natural Products
Issue number3
StatePublished - Mar 1995

ASJC Scopus subject areas

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry


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