A New Eudesmanoilde from Carpesium macrocephalum

A new eudesmanoilde was isolated from the aerial parts of Carpesium macrocephalum. Its structure was elucidated as 2α-acetoxy-11αH-eudesma-4-en-12,8β-olide by spectral methods.     

长毛风毛菊化学成分的研究

从长毛风毛菊地上部分分离得到9种化合物,经化学和光谱方法鉴定它们为:东茛菪素(E_1)、伞形花内酯(E_2)、柯伊利素(E_3)、木犀草素(E_4)、牛蒡子甙(B_1)、茵芋甙(B_2)、木犀草素-7-O-β-D-葡萄糖甙(B_4)、紫丁香甙(B_5)和一种新的倍半木脂素(Sesquilignan)(E_5),暂定名为Saussol.     

Four new eremophilendiolides from Ligularia atroviolacea

From Ligularia atroviolacea, four new eremophilendiolides, 81$-hydroxy-eremophil-3,7 （11）-dien-12,8α（14,6α）-diolide （1）, 8β-methoxy-eremophil-3,7（11）-dien-12,8α（14,6α）-diolide （2）, 8α-hydroxy-eremophil-3,7（11）-dien-12,8lβ（14,6α）-diolide （3） and eremophil-3,7（11）,8-trien-12,8 （14,6α）-diolide （4）, as well as a known diolide （5） were isolated. Their structures were elucidated on the basis of 1D and 2D NMR as well as ESI-MS spectral data.     

阿尔泰狗娃花化学成分研究

本文从阿尔泰狗娃花Heteropappus altaicus的乙醇提取物中分离出12个已知化合物,经过红外光谱(IR),质谱(MS),核磁共振谱(NMR)等分析方法及与标准品对照,鉴定了它们的结构。分别为:木栓酮(1),表木栓醇(2),达玛烷-20,24-二烯-3β-醇(3),达玛烷-20,24-二烯-3β-乙酰基(4),α-波甾醇(5),槲皮素(6),3'-甲氧基槲皮素(7),槲皮素-3-O-β-D-葡萄糖苷(8),阿魏酸(9),β-谷甾醇(10),β-胡萝卜苷(11),没食子酸乙酯(12)。其中化合物9和12为首次从该属植物中分离得到,化合物5,6,9和12为首次从该植物中分离得到。     

祁州漏芦中蜕皮甾酮类化学成分的研究

从祁州漏芦的根中分离得到7个蜕皮甾酮化合物,采用近代光谱方法鉴定其为ajugasteroneC-2,3;20,22-diacetonide(1);25-deoxy-9(11)-dehydro-20-hydroxyecdysone-20,22-monoacetonide(2);ajugasteroneC-20,22-monoacetonide(3);ajugasteroneC(4);rhapontisteroneC(5);ecdysterone(6);11α-hydrox-yecdysteroneecdysterone(7).其中化合物1和2是在自然界中首次分离到的新化合物,化合物3是首次在祁州漏芦中分离得到的.     

A New Diterpenoid Glucoside from Aster smithianus

A new diterpenoid trisaccharide, smithoside A, was isolated from Aster smithianus. Its structure was identified as pimar- 15 (16)-β-en-3β, 8β, 11α-triol-3-O-β-D-glucopyranosyl ( 1→3)- [β-glucopyranosyl (1→2)]-β-D-glucopyranoside on the basis of the spectral and chemical methods.     

Two New Components from Serratula strangulata Iljin

From the alcoholic extract of the whole plants of Serratula strangulata ,two new compounds,named strangusin-A(1) and strangusin-B(2) have been isolated and their structures were established by spectroscopic method.     

昆明西山菊科植物—土壤系统Fe,Mn,Ni分布特征研究

利用统计分析和吸收系数描述了昆明西山菊科植物－土壤系统中Ｆｅ、Ｍｎ、Ｎｉ分布特征。结果表明，除凤毛菊外菊科植物－土壤系统中植物对Ｎｉ元素均表现出相对的稀释和缓冲作用。     

Hydrophobic modification of poly（phthalazinone ether sulfone ketone） hollow fiber membrane for vacuum membrane distillation

New hydrophobic poly（phthalazinone ether sulfone ketone） （PPESK） hollow fiber composite membranes were obtained by surface-coated modification method.