Synthesis and Bio-activities of Pyrazolyl or Pyridinyl Substituted Tonghaosu Analogs

11 pyrazolyl or pyridinyl substituted tonghaosu analogs were synthesized. Structures of all the new compounds were confirmed by ^1H NMR, IR, MS, HREIMS or elemental analysis. Their antifeedant activity against larvae of large white butterfly （Pieris brassicae L.）, larvicidal activity toward mosquito （Culex quinquefasciatus Say） and growth control activity toward larvae of Spodoptera litura Fab were examined. Some of them exhibited antifeeding activities comparable to or stronger than tonghaosu Z-1. Based on the activity data, the preliminary structure-activity relationship was also discussed, which might be instructive for finding out lead compounds with better bioactivities in the future.     

茼蒿挥发性成分的固相微萃取气相色谱-质谱分析

采用顶空固相微萃取技术富集茼蒿挥发性化合物，经气相色谱—质谱联用仪分析，共分离和鉴定了25个化合物；主要的化合物及相对含量为蒎烯38．6％、罗勒烯19．3％、2-己烯醛9．0％、1，6，10-十五碳三烯6．4％、乙酸冰片酯4．3％、大根香叶烯2．7％和金合欢烯1．1％等。     

GC/MS 法测定超临界 CO2 萃取茼蒿籽油

利用GC/MS分析了超临界CO2萃取茼蒿籽油的成分组成,共检出32种成分。茼蒿籽油主要由亚油酸（含量68.32%)、棕榈酸（10.80%)、油酸(6.39%)和长碳链脂肪酸组成;茼蒿籽油还含甾类（4.76%)和丰富的维生素E（3.9mg/g);研究了茼蒿籽油的理化特征。     

茼蒿素类似物的分子多样性2-(Z)-亚苄基-1,6,9-三氧杂螺环 [4,5-癸-3-烯类化 合物的合成

有多种生物活性的茼蒿素类似物是一类具有螺环缩酮烯醚独特结构的化合物。本文报道用糠醇为原料,以我们的呋喃二醇脱水－螺环缩酮化反应为关键反应,合成了一类三氧杂螺环-[4,5]-癸烯的新型茼蒿素类似物。为这类化合物分子多样性开辟了新的途径。