Shaari K, Ling KC, Rashid ZM, Jean TP, Abas F, Raof SM, Zainal Z, Lajis NH, Mohamad H, Ali AM. Cytotoxic aaptamines from Malaysian Aaptos aaptos.
Mar Drugs 2008;
7:1-8. [PMID:
19370166 PMCID:
PMC2666884 DOI:
10.3390/md7010001]
[Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2008] [Revised: 12/12/2008] [Accepted: 12/12/2008] [Indexed: 11/16/2022] Open
Abstract
In a preliminary screen, Aaptos aaptos showed significant cytotoxic activity towards a panel of cell lines and was thus subjected to bioassay-guided isolation of the bioactive constituents. In addition to the known aaptamine, two new derivatives of the alkaloid were isolated from the bioactive chloroform fraction of the crude methanolic extract. Detailed analysis by NMR and mass spectroscopy enabled their identification to be 3-(phenethylamino)demethyl(oxy)aaptamine and 3-(isopentylamino)demethyl(oxy) aaptamine. The cytotoxic activities of the three alkaloids were further evaluated against CEM-SS cells.
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