三烯

F_D In vitro, their effects are also dramatically different from one another with only beta androstenetriol potentiating the cellular response by increasing lymphocyte activation and counteracting hydrocortisone immune-suppressive activity.

在体外，它们的作用也是彼此明显不同的，唯有雄甾烯三醇对淋巴细胞有强有力的细胞应答，并且抵消氢化考地松抑制免疫的活动。

Pregnana-3, 16, 20-triol was efficiently transformed into pregn-16-ene-3S, 20S-diol diacetate. And then the Pd-catalyzed reaction was reinvestigated.

提供了一种将剑麻皂甙元降解产物孕甾三醇转化为孕甾－16-烯－3S，20S-二醇二乙酸酯的高效合成方法，并重新考察了其钯催化反应。

The synthesis of alkylcyclohexylbenzoic acid: take the synthesis of ethylcyclohexylbenzoic acid as a typical example. With the AlCl3 as the catalyst, cis+trans acetylcyclohexylbenzene is synthesized from the reaction of acetyl chloride, cyclohexene and benzene.

烷基环己基苯甲酸的合成研究：主要研究了乙基环己基苯甲酸的合成，以乙酰氯、环己烯、苯为原料，三氯化铝为催化剂，合成乙酰基环己基苯，用水合肼、氢氧化钾、一缩二乙二醇经过高温加热还原羰基(Wolff-黄鸣龙还原)，将所得到的乙基环己基苯用乙酰氯进行傅克酰基化得到乙基环己基苯乙酮，所得中间体经过处理之后直接得到反式产物，将反式异构体的乙酰基氧化得到反式烷基环己基苯甲酸。

Under catalysis of AlCl3, trans-1-chloro-3-phenyl-1-propen-3-one was first prepared using benzoyl chloride and acetylene in CH2Cl2 at 20~25℃, which the yield is 7% higher than that in CCl4 at 40~45℃.

通过对其反应条件的研究，首次用苯甲酰氯和乙炔在三氯化铝作用下合成出反－3-苯基－1-氯－1-丙烯－3-酮；并发现用二氯甲烷作介质在20~25℃下的反应产率，比用四氯化碳作介质在40~45℃下的反应产率约高7%。

In this thesis, a novel polymerizable cation amphiphilic compound, 4-2-(acryloyloxy ethoxy benzyl tri-ethyl ammonium bromide, was synthesized.

本论文合成了一种新型可聚合两亲化合物4-2-(丙烯酰氧基乙氧基苯亚甲基三乙基溴化铵。

A novel polymerizable amphiphilic compound with self-assembly ability, 4-2-(acryloyloxy ethoxy benzyl tri-ethyl ammonium bromide, was designed and synthesized. It exhibits good water solubility, strong self-association ability and response to extra-stimulation.

设计并合成了一种新型具有自组装功能的可聚合两亲化合物4-2-(丙烯酰氧基乙氧基苯亚甲基三乙基溴化铵，它易溶于水，具有很强的自缔合能力和对外界刺激的响应性。

In the course of our study the chemistry of arenes contaning allylic acetates moiety under the catalysis of palladium, we found an efficient synthesis of benzocycles via intramolecular Friedel-Crafts reaction of halogen free 6-acetoxy-4alkenyl arens.

我们在设计钯催化的碳—氢键活化时，发现了含有烯丙基醋酸酯侧链的芳烃的三氟醋酸促进的分子内的Friedel-Crafts反应，从而为有效合成苯并六元环结构提供了一个方便的方法。

Part Ⅲ. Reactions of fluoroalkanesulfonyl azides with enoxysilanes.

第三部分，氟烷基磺酰叠氮与一些烯基硅醚的反应。

Compared with these of fat-fed group, the body weight, blood glucose levels after oral glucose and the glucose area under curve, 40min and 90min blood glucose levels after insulin injection subcutaneously and the glucose area under curve in the insulin tolerance test, the fasting serum insulin, insulin resistance index, serum cholesterol, triglyceride and lower density lipoprotein cholesterol decreased, the fasting serum leptin, high density lipoprotein cholesterol and C18:2 were significantly increased in N-6 PUFAs group.

n-6脂肪酸组从第1~10周体重均较高脂组明显减轻，糖负荷后血糖和糖耐量试验中葡萄糖曲线下面积、皮下注射胰岛素后40min、90min血糖及胰岛素耐量试验中葡萄糖曲线下面积、血清胰岛素、胰岛素抵抗指数、血清胆固醇、甘油三酯和低密度脂蛋白含量均较高脂组明显降低；血清瘦素水平、高密度脂蛋白、18碳2烯酸较高脂组明显升高。

Thirdly, the acrylic rosin was synthesized by the addition reaction from gum rosin andacrylic acid. The levo-pimaric acid was converted into acrylic pimarie acid throughDiels-Alder addition with acrylic acid. The abietic-type acids in the gum rosin were inisomerization balance under high temperature, and the abietic acid and palstric acid would beconverted into levo-pimaric acid and reacted in the later type.

第三，通过脂松香与丙烯酸加成合成了丙烯酸松香，该反应是左旋海松酸与丙烯酸发生Diels-Alder加成反应生成丙烯海松酸，由于脂松香中的枞酸型树脂酸在高温下处于异构化平衡状态，因此随着反应的进行枞酸、长叶松酸等会异构化为左旋海松酸参与反应。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐