制备并得到了三种基于二乙酯基甘脲的手性分子夹的晶体结构。
The X-ray crystal structures of three chiral molecular clips based on diethoxycarbonyl glycoluril were obtained.
涂敷导电底材的方法，含水涂料组合物，含氨基甲酸乙酯基加合物的制备方法及含氨基甲酸乙酯基的加合物。
Process for coating electrically conductive substrates, aqueous coating composition, process for preparation of adduct containing urethane groups and adduct containing urethane groups.
恒顺香醋乙酸乙酯萃取物具有弱自由基清除活性，主要清除活性成分为酚性和酸性化合物。
An ethyl acetate extract of Hengshun aromatic vinegar (he) exerted a weak radical scavenging activity, and the main components were phenolic and acidic compounds.
通过优化丙交酯与乙交酯比例及加入特殊的聚合物末端基来获得特殊的药物-聚合物间相互作用。
Specific drug–polymer interactions are engineered by optimizing the lactide to glycolide ratio and including specific polymer end groups.
通过优化丙交酯与乙交酯比例（L：G比）及加入特殊的聚合物末端基来获得特殊的药物-聚合物间相互作用。
Specific drug–polymer interactions are engineered by optimizing the lactide to glycolide ratio (L:G ratio) and including specific polymer end groups.
在3-（2＇-苯并咪唑基）-3-羟基丙酸乙酯水解过程中，苯并咪唑基以分子内一般碱催化方式参与催化酯的水解反应。
Benzimidazolyl group exhibits catalytic activity in the way as intramolecular general-base catalysis in the hydrolysis of 3-(2'-benzimidazolyl)-3-hydroxy propionate.
利用锆基催化剂合成乙酸乙酯，确定了反应条件。
Ethyl acetate has been synthesized with zirconium base catalyst, and the suitable conditions of reaction have been determined.
根据缩合原理，研究并提出了“克兰逊”催化缩合法，通过特性触煤合成了乙氧基甲叉基丙二酸二乙酯产品，提高了产品质量及回收率。
Through the peculiarity contact-coat, composes the ethoxy methylene propane dioic acid dio-ethylest which improves the quality and yield of the product.
以溴代环己烷和苯甲酸乙酯为原料，经过两步反应合成了甲基丙烯酸二环己基苯甲酯。
With bromocyclohexane and ethyl benzoate as raw materials, dicyclohexylphenylmethyl methacrylate was synthesized by two steps.
由于环保要求的提高，醇基硅酸乙酯的使用受到限制， 硅溶胶的应用越来越广泛。
The use of alcoholic ethyl silicate would be restricted and the silica sol would be more and more extensive because of the more strict environmental protection requirement.
研究了乙氧基化和丙氧基化月桂酸乙醇酰胺磺基琥珀酸单酯钠盐的表面活性。
Surface active properties of disodium ethoxylated and propoxylated lauric acid ethanolamide sulfosuccinates were studied.
本发明涉及一种钙离子拮抗剂盐酸巴尼地平中间体（S）-N-苄基-3-乙酰乙氧 基吡咯烷酯的新的制备方法。
The invention relates to a new preparation method of intermediate of (S)-N- benzyl-3-acetyloxethyl pyrrole ester of calcium channel blocker barnidipine hydrochloride.
在碱性条件下，用氨基乙酸与二硫化碳、氯甲酸乙酯反应合成了异硫氰基乙酸乙酯，总收率为4 8。
Isothiocyanatoacetate ester is synthesized by the reaction of aminoacetic acid with carbon disulfide and ethyl chloroformate in the presence of an alkali with the overall yield of 48.
本文用2-氯-5-氯甲基吡啶经氨基化，和N-氰基乙亚胺酸乙酯反应，最后甲基化得到吡虫清。
In this thesis, 2-chloro-5-chloromethyl pyridine is ammoniated, which followed by the reaction with N-cyano ethyl ethylimidoate, finally is methylated to gain the objective product.
然后在四甲基氢氧化铵催化下与正硅酸乙酯反应，制得笼状乙烯基倍半硅氧烷；
Then the new cage-like vinyl silsesquioxanes(VS) were synthesized by the reaction of vinyl-tetra-coordinate silicon with tetraethyl orthosilicate in the condition of tetramethyl ammonium hydroxide.
结论：田基黄乙醇总提取物和乙酸乙酯部位具有明显的保肝作用。
Results:The ethanol extract and ethyl acetate fraction of the Hypericum japonicum Thunb. significantly reduced acute liver injury induced by D-galactoasmi…
结论：田基黄乙醇总提取物和乙酸乙酯部位具有明显的保肝作用。
Results:The ethanol extract and ethyl acetate fraction of the Hypericum japonicum Thunb. significantly reduced acute liver injury induced by D-galactoasmi…
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