Flavonoids from Carthamus tinctorius

Two new flavonoids,(2S)-4′,5-dihydroxyl-6,7-di-O-β-D-glucopyranosyl flavanone(1) and 6-hydroxykaempferol 6,7-di-O-β-D-glucopyranoside(2),were isolated from Carthamus tinctorius.Their structures were elucidated by spectroscopic means including 2D NMR,ESIMS and CD.     

A New Bisesquiterpene from Ligularia macrophylla

From the roots of Ligularia macrophylla, a bisesquiterpene,ligumacrophyllal was isolated and its structure was elucidated on the basis of spectroscopic 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.     

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.     

一个新愈创木内酯及其苷的化学结构

从菊科植物凤毛菊[Saussurea japonica(Thunb)D.C.]中分离出一新愈创木内楷─凤毛菊内酯(japonicolactone,1)及其苷─凤毛菊内酯-10-O-β-D-葡萄糖苷(japonicolactone-10-O-β-D-glucoside,2)。经光谱分析、化学反应和X单晶衍射确定了结构。     

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.     

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。     

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.     

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.     

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.