薏苡(Coix lachryma-jobi)为天然药物,从其根中已分离出薏苡素(coixol)和苯并(口恶)嗪衍生物,但未见详细报道。本次从薏苡仁中分离出2种木质素、3种苯并素类(phenyl propanoids)和4-羟基苯甲醛,以及2种已知甾醇(β-谷甾醇和豆甾醇)。 薏苡果实(5kg)室温下用甲醇提取3周,提取物减压浓缩得残余物(88g),用乙醚-水洗脱,溶于乙醚的部分经硅胶柱多 Coix lachryma-jobi is a natural medicine, and coixol and benzoxazine derivatives have been isolated from its roots, but no detailed report has been made. Two types of lignin, three kinds of phenyl propanoids and 4-hydroxybenzaldehyde were isolated from barley kernels, and two known sterols (β-sitosterol and stigmasterol) were isolated. The loquat fruit (5 kg) was extracted with methanol at room temperature for 3 weeks, and the extract was concentrated under reduced pressure to give a residue (88 g), which was eluted with ether-water, and the ether-soluble fraction was applied on a silica gel column.