A New Cytotoxic Carbazole Alkaloid Isolated from the Stem Bark of Malaysian Clausena excavata
Why is this work in the frame?
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
No Canadian affiliation. An affiliation-only frame — the usual design — would never have seen this work. It is one of the works that make the case for inverting the frame.
The three-model screen
all 1,000 screened works →All three models called this out of scope.
Isolation of a cytotoxic alkaloid from a plant; natural-product chemistry.
The study isolates and tests plant compounds for cytotoxicity, not research itself.
Natural-product chemistry isolation of a cytotoxic alkaloid; domain biomedical chemistry.
Abstract
Abstract: Malaysia is one of the richest in its biodiversity in the world. There are not less than 12,000 plants species in its rain forest. The aim of this study is a continuous investigation for medicinal plants in Malaysia, especially the chemical constituents that are poses significant activities, i.e. anti-cancer. Clausena excavata (Rutaceae) has been known as a very rich in carbazole alkaloids, coumarins and limonoids species. In the present study, one new carbazole alkaloid, 1,8-dihydroxy-3-formyl-4-prenylcarbazole (Clausine–TH), and two other known compounds, Clausenarin (coumarin) and Clausine–K (carbazole alkaloid), were isolated from the methanol extract of the stem bark of Clausena excavata, collected from Kedah, Malaysia. Structures of these compounds were confirmed by various spectroscopic analyses including GC-MS, NMRs, and FTIR. All pure compounds isolated were tested for their cytotoxicity against CEM-SS cell lines, with the Clausine–TH and Clausine–K gave a very strong activity with an IC50 value of 2.1 µg/mL and 5.1 µg/mL, respectively.
Stored with the screening record, where it is evidence for the labels above.
The record
- Venue
- Canadian Chemical Transactions
- Topic
- Plant chemical constituents analysis
- Field
- Agricultural and Biological Sciences
- Canadian institutions
- —
- Funders
- —
- Keywords
- AlkaloidCarbazoleCytotoxic T cellBark (sound)ChemistryTraditional medicineStereochemistryOrganic chemistryMedicineForestryGeographyBiochemistryIn vitro
- Has abstract in OpenAlex
- yes