哌啶

However, pretreatment with CP-101,606 (1 mg/kg), a selective antagonist for the NR2B subunit of the N M D A receptor, significantly attenuated catalepsy and the expression of Fos-IR cells in the forebrain after the administration of haloperidol.

受体拮抗剂BD-1407 (3 mg/kg)and α-1肾上腺素能受体拮抗剂哌唑嗪(3 mg/kg)预处理不能影响氟哌啶醇诱导的强直性木僵和Fos-IR细胞表达。

The benzylpiperidine derivatives show high activity of inhbiting against AChE in vitro, some of them are even more potent than -Hup A and Tacrine.

苄基哌啶类衍生物的胆碱酯酶活性发现，其与四氢吖啶的衍生物对AChE的抑制活性超过石杉碱甲和Tacrine。

The preparation of grafted derivant of tertiary amine: it is prepared by the reacting of above (1) product and (2) product heated in water bath at 40℃ within 10min.

聚环氧氯丙烷乙二醇哌啶接支衍生物的制备：将上面制备的聚环氧氯丙烷乙二醇与0.25mol环氧丙基哌啶叔胺于40℃水浴条件下进行接支反应。

The preparation of esterified derivant : it is prepared by the esterifying reacting of above (3) product and 4g dodecylbenzene sulphonic acid heated in water bath at 40℃ within 30min.

聚环氧氯丙烷乙二醇哌啶接支酯化衍生物的制备：4g十二烷基苯磺酸于40℃水浴条件下聚环氧氯丙烷乙二醇哌啶接支衍生物进行酯化反应。

N,N '- ditertbutyl nitroxyl radical, 2, 2,6,6- tetramethyl-4 - hydroxyl piperdinehy droxylamine and its nitroxyl radical, as inhibitors of the BPO- initiated copolymerization of styrene (M 1 ) with acrylonitrile (M2 ), at 60℃,has been studied.

研究了二叔丁基羟胺，二叔丁基氮氧自由基，2，2，6，6－四甲基－4－羟基哌啶羟胺和2，2，6，6－四甲基－4－羟基哌啶－1－氧自由基对过氧化苯甲酰60℃引发的苯乙烯（M1）－丙烯腈（M2）共聚合的阻聚行为。

Starting from chiral proline, pipecolinic acid, piperazine-2-carboxylic acid and 1,2-diphenyl amino alcohol, a series of structurally simple and easily prepared amides were developed as highly effective Lewis basic organocatalysts for the asymmetric reduction of imines with trichlorosilane as the reducing agent, which promoted the reduction of N-aryl imines with high yields and excellent enantioselectivities with an unprecedented substrate spectrum.

本文分别由手性脯氨酸、哌啶酸、哌嗪酸以及氨基醇出发，设计和合成了一系列结构新颖、合成简便、性能优良的酰胺类有机小分子路易斯碱催化剂，以廉价的三氯氢硅为氢源，用这些催化剂催化亚胺不对称还原，得到了非常优良的收率、对映选择性和前所未有的底物普适性。

Syntheses of Grignard precursor, N - tert -butyl-4-chloro-piperidine, were accomplished via transamination with a quaternary ammonium piperidone or via addition of methylmagnesium chloride to an iminium ion.

氏体合成， N-叔丁基-4-氯哌啶、出自同一个经转氨酶哌季铵盐或透过增设methylmagnesium亚胺离子的氯化物。

The results showed that the addition leading to -2-phenyl-2-(2-vinylpiperidin-1-yl) ethanol 7 could proceed with good diastereoselectivity and excellent yield (95%).(3) The selective N-deprotection of -2-phenyl-2-(2-vinylpiperidin-1-yl) ethanol 2 without affecting the vinyl group in the substrate were untaken.(4) The Zip reaction for the transformation of -1-(3-aminopropyl)-3-methylazecan-2-one 8 to -7-Methyl-1, Sdiaza-cyclotetradecan-6-one 9 were undertaken. The results showed that, under controlled conditions, acceptable yields (43%) could be achieved and racemization can be minimized during the ring expansion reaction.

该合成路线与文献方法相比，反应条件较温和，也缩短了反应时间；(2)哌啶衍生物2与乙烯基格氏试剂进行加成反应的条件和立体选择性，取得了较好的结果（差向异构体比为80：20，产率95％左右）；(3)不饱和哌啶衍生物7在不影响碳碳双键的情况下去除苯基甘氨醇手性辅助基的条件；(4)具有羰基α位手性的氨基酰胺8在不同条件下经Zip重排反应转变为9的反应，控制反应条件，可使反应中消旋化减小到最小的程度。

Results: Both drugs had similar efficacy, but clonazepam had less side effects and took into effect quickly.

结果：氯硝西泮与氟哌啶醇肌注疗效相当，而氯硝西泮起效快，副反应较氟哌啶醇轻。

A careful monitoring of potassium levels is needed when using haloperidol because it might exacerbate APD prolongation induced hypokalemia and increases the risk of Torsades de points induced by QT interval excess prolongation.

在使用氟哌啶醇时应密切监测患者血钾浓度，氟哌啶醇可能加重低血钾时APD延长的程度，增加QT间期过度延长诱发Tdp的风险。

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