• 结论乙氧硬化醇高于鱼肝油酸钠组。

    Conclusion Higher cost-effectiveness ratio was found in aethoxysklerol group.

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  • 乙氧氟草醚氟乐灵二元复配制成除草剂及其制备方法

    The invention discloses a herbicide prepared by binary compounding of oxyfluorfen and trifluralin and a preparation method thereof.

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  • 取化基,如乙氧基、基及它们的环同系物基。

    R "is a replaceable function, e. G. Acetoxy, methoxy, their acyloxy and alkoxy homologs or halo."

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  • 以对氨基水杨酸为原料,经酯化、化反应得乙氧苯酯,收率为87.4%。

    Ethopabate is prepared via esterification, acylation and alkylation from p-aminosalicylic acid in87.4% overall yield.

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  • 基化制得的烷基酚聚产品分子量分布,浊度外观色泽,副产物二醇(PEG)

    The polyoxyethylene alkyl phenyl ether obtained by calcium oxide catalyst had perfect quality with narrow molecular weight distribution, high cloud point, good appearance and low by - product PEG.

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  • 合成CDMPC性固定相制得手性,对手性农药乙氧草黄和稻丰散对体具有很好的识别拆分能力。

    The CDMPC CSP was synthesized and the chiral column was prepared which showed favorable enantiomeric recognition and separation potency.

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  • 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-乙氧 基吡咯烷新的制备方法

    The invention relates to a new preparation method of intermediate of (S)-N- benzyl-3-acetyloxethyl pyrrole ester of calcium channel blocker barnidipine hydrochloride.

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  • 我们进行初步生物活性试验,筛选出具有良好抗癌活性吲哚类化合物2-苯基-3-羰基-6-氨基吲哚。

    We have carried out preliminary biological evaluation and screened out indole derivative ethyl 6-amino-2-phenyl-1H-indole-3-carboxy -late that possess good bioactivity.

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  • 前言: 目的:总结采用支气管镜支气管黏膜注射硬化剂-1%乙氧硬化醇治疗肺切除术后支气管胸膜瘘的临床经验

    Objective:To summarize our experience on treatment of bronchopleural fistula through submucosal injection of sclerosing agent-1% polidocanol using flexible bronchoscope.

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  • 考察几种生物酶作为脂肪醇基化催化剂催化活性实验发现脂肪酶二醇存在的条件下,能使环烷开环聚合生成脂肪醇聚烯醚。

    Ethoxylation of n_octanol catalyzed by a few of enzymes were studied and the results showed that only lipase with glycol has a certain catalytic activity.

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  • 这些试验表明普洱茶方面的功效差于专门用于治疗高血脂药物——氯苯异丁酸酯,而且没有这种药物副作用

    These tests showed pu-erh performed at least as well as clofibrate, the most advanced medicine for the purpose, without the drug's side effects.

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  • 邻甲基苯酚对氯*原料四步反应合成6-(2-甲基)-1,4-二氢-4-代-3-喹啉羧酸。经抗鸡球虫实验证明具有抗球虫效果。

    The compound 6-(2-methoxy phenoxy)-1, 4-dihydrogen-4-oxo-3-ethyl quinoline carboxylate is prepared with o-methoxyphenol and p-chloronitrobenzene as materials and through four-step reaction.

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  • 采用金属脱水载体纳米化硅改性剂丙烷制备出氨钙体系催化剂

    Calcium ammine catalyst was prepared with metal calcium, dehydrated liquid ammonia as raw materials, nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

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  • 以硅丙烯酸为原料,乳液聚合制备了有机硅-丙烯酸酯共聚物

    The silicone-acrylate copolymer was synthesized using siloxane and ethyl acrylate by emulsion polymerization.

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  • 相色谱上,甲酯酯、3-代戊酸甲酯在无任何催化剂存在下,发生酯交换反应。

    Gas chromatography(GC) as a chemical reactor, methyl acetoacetate, ethyl acetoacetate, and methyl(3-oxo) pentanoate can undergo transesterfication with various alcohols without any catalyzers.

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  • 指钛酸甲酯、钛酸、钛酸四丁酯、四氯化钛、硫酸钛中的任一

    The said titanate is one of the kinds such as methyl titanate, ethyl titanate, butyl titanate, titanic chloride and titanoxy sulfate.

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  • 选择甲基丙烯酸甲基氨基改性丙烯酸树脂获得带有反应性氨基丙烯酸树脂,进而制备改性丙烯酸环粉末涂料

    By using dimethylamino ethyl methacrylate to modify acrylate resin, we acquired a new type of acrylate resin with reactive amino group. Further, we engineered a modified acrylic-epoxy powder coating.

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  • 发酵菌丝体提取物不同溶剂萃取组分对活性清除能力强弱为正丁醇提物组分、酯组分、组分、氯仿组分;

    The sequence of scavenging of active oxygen isn-butanol, ethyl acetate, ethanol, chloroform; the scavenging of active oxygen is dose-dependent on the content of total flavones.

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  • 以对甲苯三氟醋酸酯为原料,缩合环合两步反应得到2型抑制剂赛来布,收率为6 7%。

    Celecoxib as a cyclooxygenase-2 inhibitor, was synthesized from p-methylacetophenone and ethyl trifluoroacetate by successively condensation and cyclization in 67% overall yield.

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  • 西他丁合成1-溴-5-氯戊烷为原料,活性亚甲基烃化、成肟和水解3反应得7-氯-2-庚酸酯;

    The synthesis of Cilastatin sodium started from ethyl acetoacetate and 1-bromo-5-chloropentane, through 3 steps to produce ethyl 7-chloro-2-oxoheptanoate;

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  • 然后四甲基化铵催化下正硅酸反应,制得笼状烯基倍半硅烷;

    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.

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  • 研究撑二噻吩(PEDOT水溶液中的阳极降解过程。

    The degradation of poly(3,4-ethylenedioxythiophene) (PEDOT) films at an anode in an aqueous solution has been systemically studied.

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  • 酯; 3-代己酸

    3-oxo-hexanoic acid ethyl ester;

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  • 酯; 3-代己酸

    3-oxo-hexanoic acid ethyl ester;

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