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3-(6-Ethynyl-benzodioxol-5-yl)-2-hydroxy-propane-1-sulfonic acid 4-iodo-pent-4-enyl ester is a key intermediate in the synthesis of cephalotaxine.
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3-(6-乙炔基-苯并[1,3]二氧杂环戊烯-5-基)-2-羟基-丙磺酸-4′-碘-4′-戊烯酯是我们设计的三尖杉碱化合物合成路线中的关键中间体,其分子中的末端炔键对于构建三尖杉碱的环状结构及立体化学至关重要。 |
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Modified with ZnO,SnO2,TiO2 nano-coating on α-alumina microfiltration membrane(0.
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30μm左右α-Al2O3微滤膜其孔内表面涂覆ZnO、SnO2、TiO2纳米涂层,均可以显著地提高膜的水通量。 |
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Morbidity of Hypertension, Hyperlipemia and Fatty Liver among Non-Labor Staff;
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30岁以上非体力劳动者815例高血压、高血脂、脂肪肝的患病率 |
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Paclitaxol for 32 cases with drug resistant mammary carcinoma;
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32例紫杉醇治疗耐药性乳腺癌 |
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The Psychological Status of 398 Cases Unmarried Abortion Women;
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398例未婚人工流产女性的心理状况分析与对策 |
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Nosocomial Infection in a Same Hospital:Three-year Prevalence Survey;
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3年医院感染流行病学调查分析 |
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Influence of 3-nitropropionic acid on expression of caspase-3 in brain tissue after ischemic preconditioning;
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3-硝基丙酸对缺血预处理后脑组织caspase-3表达的影响 |
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Effects of three industrial effluents on embryos of lefteye flounder Paralichthys olivaceus;
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3种工业废水对牙鲆胚胎的毒性效应 |
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Comparing the action of the three extracts in Choerospondias Axillaries (Roxb.)Burtt et Hill on arrhythmias induced by ouabain;
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3种广枣提取物对哇巴因诱发豚鼠心律失常作用的比较 |
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Three fluorescent labeling methods based on PCR: a comparative evaluation;
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3种基于PCR的荧光标记方法的比较研究 |
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Cost-minimization Analysis of Three Pharmacotherapeutic Schemes for Hypertension;
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3种用药方案治疗原发性高血压的最小成本分析 |
