• 目的探讨实验性缺血中性粒细胞(NC)浸润规律及甲烯土霉素(MC)其影响。

    Objective To research on the neutrophil cell (nc) infiltration in the ischemic brain and the influences by methacycline (MC).

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  • 采用硫醇呋喃硫醇、吡嗪-2,4-壬二呋喃等主要的牛肉香气成分香原料,可以调配出香气逼真的炖牛肉香精

    Methanethiol, furanthiol, pyrazine, trans, trans-2,4-nonadienal and furfuran ketone were used to develop beef flavor.

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  • 介绍2,3-二氯丁二基丙共聚物合成以及该共聚物为主体材料橡胶金属热硫化粘结的胶粘剂。

    The synthesis of 2,3- DCB /MMA Copolymer and preparation of the adhesive for bonding rubber to metal with the copolymer above as the main material are introduced.

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  • 素是从冬凌草等植物叶子中提取出的一种贝壳杉二萜类化合物,具有好的抗肿瘤活性

    Oridonin anent-kaurene diterpenoid compound mainly isolated from the leaves of R. rubescen. Oridonin has been proved to possess good antitumor activity .

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  • 本文研究了高压汞灯照射下,二3,4 -聚异戊二能量传递机理

    This paper studied the energy transmission mechanism between benzophenone and 3, 4-polyisoprene which were irradiated by high pressure Hg lamp.

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  • 结论短期应用白三受体拮抗剂可改善哮喘患者乙酰胆碱支气管激发试验剂量-反应曲线参数

    Conclusion Short term use of Zafirlucast in asthmatic patients could improve the parameters of dose response curve obtained after the methacholine challenge test.

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  • 它们乙酸、正葵14-十五烷酸丙三醇69-十八碳二酯、角鲨烷硬脂二十烷基油酸

    They were acetic acid, benzaldehyde, n caproic acid, 14 methyl pentadecanoic methyl ester, glycerin, benzoic acid, 6,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.

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  • 首先以尼醇合成全反式侧四十碳十-1-醇,2,3-氧基-5--1,4-苯还原产物无水氯化锌存在缩合

    All - E long chain part was synthesized from solanesol, then condensed with the reductive product of 2,3 - dimethoxy - 5 - methyl -1,4- benzoquinone in the presence of dry ZnCl2.

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  • 染料链上原子氨基的原子相连,而氮原子又与染料的川链形成胺。

    The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye .

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  • 计算表明氢分子加成反应生成稳定硅烷基硅

    The computation indicated that the stable silicyl alkene is produced by the addition reaction of silicon alkyne and hydro-gen.

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  • 酮、多效唑、唑醇、异恶草酮、辛宝农药乳化剂油田化学品表面活性剂纺织染整助剂

    Triadimefon, paclobutrazol, diniconazole, yect, JXB, pesticide emulsifier, oil field chemicals, surface active agent, dyeing and finishing auxiliaries for textile.

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  • 采用均苯四酸酐PMDA过氧化二苯酰(BPO)双固化剂固化丁二环氧树脂ELPB),制备了ELPB/PMDA/BPO高温胶粘剂

    The high temperature resistant adhesive was prepared based on liquid polybutadiene epoxy resin(ELPB) cured by pyromellitic dianhydride(PMDA) and benzoyl peroxide(BPO).

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  • 基化N,N’-叉双酰胺交联丙基聚糖(简称CM-CADB)凝胶酶载体用树脂为新型载体,将谷氨酸脱羧酶固定CM-CADB树脂上。

    The immobilized L-glutamic decarboxylase on the CM-CADB (carboxymethyl-copolymer of allyl dextran and N, N'-methylene-bisacrylamide) ion exchange resin has been studied in this paper.

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  • 研究硫醇光固化组成物的反应机理,选用安息香双、安息香乙醚、安息香正醚、二苯噻吨酮光敏剂红外光谱法研究了硫醇光化学反应动力学

    The kinetics of thiol-ene reaction is studied by Fourier Transform Infrared when benzoin dimethyl ether, benzoin ethyl ether, benzoin butyl ether, benzophenone and ITX were used as photosensitizer.

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  • 通过酰基异长叶缩合反应合成出具有香气化合物

    Six types fragrant new compounds were synthesized by the condensation reactions of formylisolongifolene with ketones.

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  • 齐墩果烷- 28 -羧酸- 2,11,13(18)-三制备治疗皮肤疾病药物中的应用

    Application of oleanane-28-carboxylic methyl ether-2, 11, 13 (18) -triene in preparing medicament for treating skin diseases.

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  • 催化剂的作用下,重氮乙酸吗啉衍生能够发生一种新型加成反应

    A novel addition reaction of methyl phenyldiazoacetate to enamine(which was prepared from acetophenone and secondary amine) was investigated using copper salt as a catalyst.

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  • 过渡理论AM 1方法,对8-二基- 7-基- 5 --壬腈氧化物分子内环加成反应机理进行了研究。

    The reaction mechanism of 8-dimethyl-7-methoxy-5-ethenyl-nonanenitrile oxide cycloaddition has been studied with the molecular orbital AM1 method and transition state theory.

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  • 产物是双键经过重排的取代丙基二氧基硅烷6—10,该产物可进行一系列电取代反应

    The rearrangement of allylic double bond took placed in the course of these reaction. 6—12 are able to undergo a lot of electrophilic substitution reaction.

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  • 报道肉芝软珊瑚的重要中间体6-基-8-硅氧基-6--2-酮-1-辛酸乙合成

    This paper reports the synthesis of 6-methyl-8-trimethylsiloxy-oct-6-ene-2- one-1-acid acetate.

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  • 十四酯;

    Tetradecanedioic acid, dimethyl ester;

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  • 采用硫醇呋喃硫醇、吡嗪-2,4-壬二呋喃等主要的牛肉香气成分香原料,可以调配出香气逼真的炖牛肉香精

    Methanethiol, furanthiol, pyrazine, trans, trans-2,4-nonadienal and furfuran ketone were used to develop beef flavor. This flavor has natural and vivid pot-roast beef flavor.

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  • 优选地,蓖麻酸通过交叉复分解同质复分解分别转化丙一元醇1-癸-4-醇或高丙多元醇9-十八-7,12-二醇。

    Preferably, methyl ricinoleate is converted by cross-metathesis or homo-metathesis into the homo-allylic mono-alcohol 1-decene-4-ol or the homo-allylic polyol 9-octadecene-7,12-diol, respectively.

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  • 优选地,蓖麻酸通过交叉复分解同质复分解分别转化丙一元醇1-癸-4-醇或高丙多元醇9-十八-7,12-二醇。

    Preferably, methyl ricinoleate is converted by cross-metathesis or homo-metathesis into the homo-allylic mono-alcohol 1-decene-4-ol or the homo-allylic polyol 9-octadecene-7,12-diol, respectively.

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