〔英〕/Roumy V…∥PlantaMed.-2006,72(10).-894～898从圭亚那产的抗疟植物P.cuspidata中分离出一新的和稀有的氮杂蒽生物碱(1)与一新的双苄基异喹啉生物碱的非对映异构体(2),还分得2个已知生物碱。评价了化合物的体外抗疟作用。该植物树皮在室温下用石油醚脱脂,减压除去石油? 〔〕 / Roumy V ... ∥ PlantaMed.-2006, 72 (10).-894 ~ 898 from the anti-malarial plant produced in Guyana P. cuspidata isolated a new and rare aza-alkaloids (1) and A new diastereoisomer (2) of bis-benzylisoquinoline alkaloid, also assigned to 2 known alkaloids. Compounds were evaluated for their anti-malaria effects in vitro. The bark of the plant is degreased with petroleum ether at room temperature and the oil is removed under reduced pressure.