Phytochemistry 1997-Feb
Ester-type cephalotaxus alkaloids from Cephalotaxus harringtonia var. drupacea.
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Abstracto
Three alkaloids, neoharringtonine, homoneoharringtonine and 3'S-hydroxyneoharringtonine, were isolated from the leaves and stems of Cephalotaxus harringtonia var. drupacea. Their structures were established by spectroscopic methods, including two-dimensional NMR and CD spectra, and their antileukaemic activity was evaluated using P-388 leukaemia cells.