Triterpenes from Campanula lactiflora

Area of Science:

• Natural Product Chemistry
• Phytochemistry
• Organic Chemistry

Background:

• Campanula lactiflora is a plant species with potential for novel chemical discoveries.
• Triterpenes are a class of organic compounds with diverse biological activities.

Purpose of the Study:

• To isolate and characterize chemical constituents from the leaves of Campanula lactiflora.
• To identify new and known triterpene compounds for further research.

Main Methods:

• Isolation of compounds using chromatographic techniques.
• Structure elucidation using high-field 1D and 2D Nuclear Magnetic Resonance (NMR) spectroscopy.
• Mass spectrometry (MS) analysis, including Electron Ionization Mass Spectrometry (EI-MS) and Liquid Chromatography-Mass Spectrometry/Mass Spectrometry ((+) LC-MS/MS).

Main Results:

• One new triterpene, 3beta-acetoxylup-20(30)-en-29-al, was identified.
• Two known triterpenes, 3-acetylptiloepoxide and 3beta-acetoxylup-20(29)-ene, were isolated for the first time from this plant.
• The structures of all isolated compounds were confirmed through comprehensive spectroscopic analysis.

Conclusions:

• The chemical investigation of Campanula lactiflora leaves led to the discovery of novel and known triterpenes.
• This study expands the knowledge of the phytochemical profile of Campanula species.