Cytotoxic activity of some natural and synthetic ent-kauranes

J Nat Prod. 2007 Mar;70(3):347-52. doi: 10.1021/np060504w.

Abstract

Atractyligenin (1) and several synthetic derivatives were tested and found to be active against tumor cell replication. Compound 1 was readily converted to the 2,15-diketo (3) or 15-keto (4) derivatives, which contain an alpha,beta-unsaturated ketone. Compounds 3 and 4 showed significant cytotoxic activity against all six tested cancer cell lines and were most potent against 1A9 ovarian cancer cells with EC50 values of 0.2 and 0.3 microM, respectively. These two 1-analogues are promising lead compounds for further investigation.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents, Phytogenic* / chemical synthesis
  • Antineoplastic Agents, Phytogenic* / isolation & purification
  • Antineoplastic Agents, Phytogenic* / pharmacology
  • Asteraceae / chemistry
  • Atractyloside / analogs & derivatives*
  • Atractyloside / pharmacology
  • Diterpenes, Kaurane* / chemical synthesis
  • Diterpenes, Kaurane* / isolation & purification
  • Diterpenes, Kaurane* / pharmacology
  • Drug Screening Assays, Antitumor
  • Female
  • Humans
  • Lamiaceae / chemistry
  • Molecular Structure
  • Ovarian Neoplasms
  • Plants, Medicinal / chemistry
  • Tumor Cells, Cultured

Substances

  • Antineoplastic Agents, Phytogenic
  • Diterpenes, Kaurane
  • atractyligenine
  • Atractyloside