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Three flavanones, pinostrobin (1), pinocembrin (2) and alpinetin (3) and two chalcones, cardamonin (4) and boesenbergin A (5) were isolated from the hexane and chloroform extracts of rhizomes ofExpand
The methanolic extract of Boesenbergia rotunda (L.) Mansf. and its major compound pinostrobin induces anti-ulcerogenic property in vivo: possible involvement of indirect antioxidant action.
It can be concluded that MEBR possesses anti-ulcer activity, which could be attributed to indirect anti-oxidant mechanism of pinostrobin but not to the intervention with nitric oxide and COX inflammation pathways. Expand
Chemical constituents from stem barks and roots of murraya koenigii (Rutaceae)
Four carbazole alkaloids, identified as mahanimbine (1), girinimbine (2), murrayanine (3) murrayafoline-A (4) and one triterpene were isolated from stem bark and roots of Murraya koenigii. TheExpand
Antioxidant activity-guided separation of coumarins and lignan from Melicope glabra (Rutaceae).
The ethyl acetate and methanol bark extracts of Melicope glabra were evaluated for their antioxidant capacities by 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity and β-caroteneExpand
Phytochemicals from Mangifera pajang Kosterm and their biological activities
Phytochemical investigations on various parts of Mangifera pajang have identified terpenoids and a flavonol derivative as major constituents andBioassay studies have indicated that the crude extracts and isolated compounds have potential as naturally-derived anticancer and antimicrobial agents, besides possess high free radical scavenging activity. Expand
A new cytotoxic carbazole alkaloid from Clausena excavata
A new carbazole alkaloid was isolated from the ethyl acetate extract of the stem bark of the Malaysian Clausena excavata and shows significant cytotoxicity against CEM-SS cell line. Expand
A new anthraquinone from Morinda citrifolia roots
Biological evaluation of five pure compounds and all the extracts against the larvae of Aedes aegypti indicated 1-hydroxy-2-methylanthraquinone and damnacanthal were the extracts to exhibit promising larvicidal activities. Expand
Cytotoxic activity of coumarins from Micromelum minutum
When evaluated against the normal mouse fibroblast (3T3) cell line, 8-hydroxyisocapnolactone-29,39-diol was found to be inactive, hence it could serve as a valuable lead for further design and synthesis of more active analogues. Expand
Antitumor promoting and actioxidant activities of anthraquinones isolated from the cell suspension culture of Morinda elliptica
Six anthraquinones (nordamnacanthal, alizarin-1-methyl ether, rubiadin, soranjidiol, lucidin-ω-methyl ether and morindone) isolated from the cell suspension culture of Morinda elliptica were assayedExpand
Prenylated flavones from Artocarpus altilis
Six prenylated flavones, including one new compound, were isolated and identified from the stem bark extracts of Artocarpus altilis by spectroscopic methods and comparison with published data for the known compounds. Expand