Lupane Triterpenes with Antileukemia Activity from Maytenus quadrangulata

Area of Science:

• Phytochemistry
• Natural Products Chemistry
• Medicinal Chemistry

Background:

• Maytenus quadrangulata is a plant found in Brazilian biomes.
• Previous research indicates its potential as a source of bioactive molecules.
• Triterpenes are a class of organic compounds with diverse biological activities.

Purpose of the Study:

• To conduct a phytochemical investigation of Maytenus quadrangulata branches.
• To isolate and characterize new and known compounds from the plant extract.
• To evaluate the cytotoxic and drug-like properties of selected compounds.

Main Methods:

• Phytochemical analysis of the chloroform extract.
• Isolation and structural elucidation of compounds using NMR spectroscopy (1D and 2D).
• In vitro cytotoxicity assays against leukemia cell lines and in silico ADMET analysis.

Main Results:

• A new triterpene, 30-oxo-2,3-seco-lup-20-(29)-ene-2,3-dioic acid (1), and a new semisynthetic triterpene, 25-hydroxy-7-oxofriedelan-3α-yl acetate (2), were isolated.
• Seven known compounds were also identified.
• Compound 1 demonstrated the highest cytotoxicity and favorable drug-like properties.

Conclusions:

• Maytenus quadrangulata is a valuable source of bioactive triterpenes.
• The novel triterpene 1 shows promise as a potential anticancer therapeutic agent.
• Further research is warranted to explore the therapeutic potential of compound 1.