Two isopentenyl resorcinols from Peperomia tetraphylla

Area of Science:

• Natural Product Chemistry
• Pharmacology

Background:

• Peperomia tetraphylla is a plant species known for potential bioactive compounds.
• Isopentenyl resorcinols represent a class of natural products with diverse biological activities.

Purpose of the Study:

• To isolate and characterize novel isopentenyl resorcinols from Peperomia tetraphylla.
• To evaluate the cytostatic activity of the isolated compounds against selected cancer cell lines.

Main Methods:

• Isolation of compounds using chromatographic techniques.
• Structure elucidation employing advanced spectroscopic methods including 1H NMR, 13C NMR, 2D NMR, and HR-TOF-MS.
• In vitro cytostatic activity assays against G2, A549, Hela, and HCT 116 cell lines.

Main Results:

• Two isopentenyl resorcinols, designated peperobtusin B and peperobtusin C, were successfully isolated and structurally identified.
• Both peperobtusin B and peperobtusin C exhibited weak cytostatic activity against the tested cancer cell lines.

Conclusions:

• The study successfully identified two new isopentenyl resorcinols from Peperomia tetraphylla.
• The isolated compounds demonstrated limited efficacy as cytostatic agents in preliminary cancer cell line screening.