A Piperidine Alkaloid and Limonoids from Arisaema decipiens, a Traditional Antitumor Herb Used by the Dong People

다국어 초록 (Multilingual Abstract)

A new piperidine alkaloid and three known tetranortriterpenoids were isolated from the methanol extracts of the rhizomes of Arisaema decipiens Schott (Araceae) and their chemical structures were identified as (-)-(2R*,3S*,6S*)-N,2-dimethyl-3-hydroxy-6-(9-phenylnonyl) piperidine (1), 6-deacetylnimbin (2), 28-deoxonimbolide (3) and nimbin (4). The N-methylated derivative (1a) of 1 was synthesized. Compound 1 exhibited weak inhibitory activity against the MCF-7 cell line, while compound 1a showed potential inhibitory activity against the MCF-7 cell line with an IC50 value of 4.6 μM and weak inhibitory activity against K562 and SK-OV-3 cells. This plant in genus Arisaema is firstly reported as the source of limonoids that are considered a natural antitumor herbal medicine.

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