Three new phenolics(1–3) and twenty-eight known compounds(4–31) were isolated from an ethanolic extract of roots of Alangium chinense. Compound 11 exhibited a
患者女性,26岁,因发作性晕厥5个月余,近1周频繁发作,于2003年4月25日入院.患者8年前有晕厥发作史;自2002年11月反复出现发作性晕厥,历时数十秒至1~2 min后自行苏醒;近1周余晕厥发作1~3次/d,多于清晨及白天发作.外院心电图示A型预激、QT延长及多形性室性早搏(室早);脑电图、心脏超声正常.家族中无类似发作史.查体:血压110/70 mm Hg (1 mm Hg=0.133 k