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Note | Regular issue | Vol 81, No. 2, 2010, pp.441-450
Published online, 10th December, 2009
DOI: 10.3987/COM-09-11870
Cephastigiamide A, and Antiplasmodial Activity of Cephalotaxus Alkaloids from Cephalotaxus harringtonia Forma Fastigiata

Hiroshi Morita,* Yuta Nagakura, Takahiro Hosoya, Wiwied Ekasari, Aty Widyawaruyanti, Kanami Mori-Yasumoto, Setsuko Sekita, and Yusuke Hirasawa

*Faculty of Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan


A new Cephalotaxus alkaloid, cephastigiamide A (1), has been isolated from the leaves of Cephalotaxus harringtonia forma fastigiata and the structure was elucidated by 2D NMR analysis and chemical degradation. Harringtonine, deoxyharringtonine, and homodeoxyharringtonine showed pronounced antiplasmodial activity against Plasmodium falciparum 3D7 but not against Leishmania major. Structure-activity relationship for antiplasmodial activity of isolated Cephalotaxus alkaloids was also discussed.