红丝线中两个新化合物的结构鉴定

目的：分离鉴定红丝线(Peristrophe roxburghian)地上部分的化学成分。方法：红丝线的地上部分经60%乙醇提取,硅胶和氧化铝柱色谱分离,经化学和UV,IR,NMR及MS光谱解析确定结构。结果：分得两个化合物,经鉴定化合物I为5,6-dimethoxy-2(3H)-benzoxazolone,化合物II为2-amino-7,8-dimethoxy-3H-phenoxazine-3-one。结论：两个化合物均为新化合物,分别命名为红丝线酰胺(peristrophamide, I)和红丝线素peristrophine, II)。     

豆叶九里香挥发油化学成分的研究

The essential oil from the branches and leaves of Murraya euchrestifolia Hayata was examined by GC, fractional distillation, column chromatography and GC/MS. Two main components were isolated from the essential oil by using fractional distillation and column chromatography on silica ogel and were identified as limonene (56.10%) and perillaldehyde (34.10%) respectively by IR, NMR and MS spectra. Seven other components were isolated in small amounts and identified as n-propyl-benzene, aromadendrene, elemol, 1-keto-4-hydroxy-decalin, 1-cycloheptyl-1-methyl-ethanol, myrtenal and eicosane.In addition, another seven compounds in this essential oil were identified as α-pinene, camphene, β-pinene, pulegone, perillylalcohol, dihydrocarveyl acetate and cis-carveyl acetate.     

豆叶九里香挥发油化学成分的研究

豆叶九里香(Murraya euchrestifolia Hayata)系云香科九里香属植物,产在广西、云南等地。民间用其枝叶入药,有祛风活血、消炎止痛作用。我所药理研究室抗菌试验表明豆叶九里香挥发油对流感杆菌、枯草杆菌、肺炎球菌等11种菌株有明显的抑制作用,其中对流感杆菌(1:1600)抑制作用最强。广西北流县医药研究所用豆叶九里香油做成外用油膏治疗感     

当归恩挥发油化学成分的研究

用高分辨的柔性石英毛细管柱气相色谱法和气相色谱—质量选择检测器分离和鉴定了当归恩挥发油中的15种成分,其中含量大于2%以上的有10种。这些化合物是。α—pinene,β-phellandrene, α-terpinene, p-cymene, sabinene, γ-terpinene,terpineo-4-ol, ciscaryophyllene, duryl aldehyde, isoduryl aldehyde和terpinolene。     

苦豆子生物碱的质谱研究

本文报道苦豆子(Sophora alopecuroides L.)生物碱1～6在电子轰击下的质谱特征。用高分辨精确质量测定和亚稳跃迁测试研究它们的裂解规律,探讨这类生物碱的空间构型、D环双键位置对质谱裂解的影响。