Incrassamarin A–D: Four new 4-substituted coumarins from Calophyllum incrassatum and their biological activities

Aminudin, Nurul Iman and Ahmad, Farediah and Bakhtiar, M. Taher and Mohamed Zulkifli, Razauden (2016) Incrassamarin A–D: Four new 4-substituted coumarins from Calophyllum incrassatum and their biological activities. Phytochemistry Letters, 16. pp. 287-293. ISSN 1874-3900

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Abstract

Four new 4-substituted coumarins, incrassamarin A (1), B (2), C (3) and D (4) with (7S,8S)-7,8-dihydro-5- hydroxy-7,8-dimethyl-4-propyl-2H,6H-benzo[1,2-b;5,4-b’]dipyran-2,6-dione (5), friedelin, carpachromene, amentoflavone, epiafzelechin and L-quercitrin were isolated from the barks and leaves of Calophyllum incrassatum (Guttiferae). The compounds were isolated and purified by size-exclusion recycling HPLC and column chromatographic techniques. The structures of the compounds were determined by spectroscopic means. The compounds were tested for their cytotoxic activity towards MCF-7 and A-549 cell lines and a-glucosidase enzymatic inhibitory activity. Compound (1) displayed cytotoxic activity against A-549 cell lines with IC50 87.71mg/mL and showed inhibition towards a-glucosidase enzymatic activity with IC50 93.25mM. This is the first report on the isolation of phytochemicals from the barks and leaves of C. incrassatum and their bioactivities.

Item Type:	Article (Journal)
Additional Information:	5209/50956
Uncontrolled Keywords:	Calophyllum incrassatum, Guttiferae,Coumarin, Cytotoxic, α-Glucosidase
Subjects:	R Medicine > RS Pharmacy and materia medica
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Pharmacy > Department of Pharmaceutical Technology
Depositing User:	Dr Muhammad Taher
Date Deposited:	27 Jun 2016 15:12
Last Modified:	04 Oct 2017 09:35
URI:	http://irep.iium.edu.my/id/eprint/50956

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