Trigoxyphins H and I: two new daphnane diterpenoids from Trigonostemon xyphophylloides

Bioorg Med Chem Lett. 2012 Jun 1;22(11):3828-30. doi: 10.1016/j.bmcl.2012.03.069. Epub 2012 Mar 24.

Abstract

Two new daphnane diterpenoids (1 and 2), together with four known analogues (3-6) were isolated from Trigonostemon xyphophylloides. Their structures were elucidated by spectroscopic analysis. Compounds 1 and 2 were evaluated for in vitro cytotoxic activities against the SPCA-1 (human lung cancer) and BEL-7402 (human hepatocellular carcinoma) cancer cell lines. Trigoxyphin I (2) showed modest cytotoxicity against two tumor cell lines.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents, Phytogenic / chemistry*
  • Antineoplastic Agents, Phytogenic / isolation & purification
  • Antineoplastic Agents, Phytogenic / toxicity
  • Apoptosis / drug effects
  • Cell Line, Tumor
  • Diterpenes / chemistry*
  • Diterpenes / isolation & purification
  • Diterpenes / toxicity
  • Euphorbiaceae / chemistry*
  • Humans
  • Magnetic Resonance Spectroscopy
  • Molecular Conformation

Substances

  • Antineoplastic Agents, Phytogenic
  • Diterpenes
  • trigoxyphin H
  • trigoxyphin I