New triterpene saponins from Duranta repens Linn. and their cytotoxic activity

Molecules. 2009 May 25;14(5):1952-65. doi: 10.3390/molecules14051952.

Abstract

From the leaves of Duranta repens (Verbenaceae) two new triterpene saponins, named durantanin IV (1) and V (2)were isolated.In addition, ten known compounds were isolated, namely a bidesmosidic saponin, oleanolic acid, three phenylethanoids and five flavonoids. All metabolites were isolated for the first time from this genus except for 3 (oleanolic acid) and 7 (E/Z acteoside). The structures were determined mainly by spectroscopic methods (UV, IR, HRESI-MS, (1)H-, (13)C-NMR, (1)H-(1)H COSY, HSQC and HMBC). Cytotoxic screening of the chloroform, ethyl acetate and methanol extracts was carried out on brine shrimps. In addition, the investigated methanol extract and compounds 1, 2 and 7 showed significant cytotoxic activity against a HepG2 cell line.

MeSH terms

  • Animals
  • Antineoplastic Agents, Phytogenic / chemistry
  • Antineoplastic Agents, Phytogenic / isolation & purification
  • Antineoplastic Agents, Phytogenic / pharmacology
  • Artemia / drug effects*
  • Carbohydrate Conformation
  • Carbohydrate Sequence
  • Cell Line, Tumor / drug effects*
  • Drug Screening Assays, Antitumor
  • Humans
  • Molecular Sequence Data
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Plant Leaves / chemistry
  • Saponins* / chemistry
  • Saponins* / isolation & purification
  • Saponins* / pharmacology
  • Triterpenes* / chemistry
  • Triterpenes* / isolation & purification
  • Triterpenes* / pharmacology
  • Verbenaceae / anatomy & histology
  • Verbenaceae / chemistry*

Substances

  • Antineoplastic Agents, Phytogenic
  • Saponins
  • Triterpenes