二甲基吡啶

The platinum terpyridyl acetylide complex containing a simple amine group in the acetylide ligand could be utilized as a chemo-sensor for detection of micromolar concentration of protons by monitoring the changes both in luminescence and color.

实验发现： 1.4-N，N-二甲基苯乙炔为辅助配体的三联吡啶Pt络合物TA在质子存在下吸收和发光变化明显，因此可以通过颜色或发光的变化检测微量质子的存在。

Objective:To explore the cardiac toxicity in rats exposed to aluminum chloride(AlCl3),and the inhibition of 1,2-dimethyl-3-hydroxy-4-pyridone.

目的：研究氯化铝(AlCl_3)染毒对大鼠心脏的毒性及铝螯合剂1，2-二甲基-3-羟基-4-吡啶酮的保护作用。

ObjectiveTo explore cardiac toxicity in rats exposed to aluminum chloride (AlCl3), and to evaluate the protection of 1,2dimethyl3hydroxy4pyridone against toxicity.

目的研究氯化铝（AlCl3）染毒对大鼠的心脏毒性及铝螯合剂1，2二甲基3羟基4吡啶酮的保护作用。

The optimal separating condition of chromatography analysis was: Shimadzu VP-ODS 150mm4.6mm as chromatographic column; acetonitrile/water (12/88,V/V, Contained 1.25mmol/l phosphoric acid) as mobile phase with flow rate of 1.0ml/min. Macroporous ion exchange resins and activated carbon were applied to enrich the trace level impurities and the main impurities was determined by LC-MS and GC-MS.They were : Benzonitrile , 2-Methyl-8-hydroxyquinoline, 2,6-Pyridinediamine , O-ethyloxime Cyclo-hexanone and compound with 220 molecular weight .

采用离子树脂和活性炭吸附富集这些微量的杂质，并通过液质联用和气质联用对杂质进行了定性分析，鉴定了影响290nm吸收的主要杂质为苯甲腈，2甲基-8羟基喹啉，2，6二氨基吡啶，O-乙基环己酮肟和分子量220的物质。

GC/MS analysis on the leaf oil indicated that the main components with a relative content of ≥3% were alloocimene (43.22%),α-pinene (13.63%),γ-terpinene (5.49%),-3, 7-dimethyl-, 2, 6-octadien-1-ol (3.58%),β-fenchyl alcohol (4.58%), and 2-amino-3, 5-dicyano-6-(4-methoxyphenoxy)-pyridine (3.67%).

用GC/MS联用方法，对巨尾桉挥发油进行鉴定，相对百分含量在3%以上的化合物有：α-蒎烯(13.63%)、别罗勒烯(43.22%)、γ-萜品烯(5.49%)、3，7-二甲基－2，6-辛二烯醇(3.58%)、β-小茴香醇(4.58%)和2-氨基－3，5-二氰基-6-（4-甲氧基苯氧基）－吡啶(3.67%)。

The effect of different second ligand on the flourescent properties of polymers were studied. Then AxByEu/HTTA/PMMA was prepared using the best second ligand HTTA.

考察了不同的第二配体（咔唑、二甲基-联吡啶、邻菲罗啉、噻吩甲酰三氟丙酮HTTA）对脂肪酸铕聚合物发光性能的影响，选择出合适的第二配体HTTA，进而合成了A3Eu/HTTA/PMMA聚合物。

The synthesis, crystal structure and characterization of 4, 5-dimethyl-2-(2-pyridyl) imidazole were reported.

为了制备研究2-取代咪唑配合物，设计合成了4， 5-二甲基-2-（2-吡啶基）咪唑，用IR、MS、1H-NMR对其结构进行了确证，并对其晶体结构进行了分析。

AIM: To establish a method to determine 2,6Dimethyl4(3nitropheny1)1,4 dihydropyridine3carboxylic acid dimethylester5carboxylic acid pentyl ester (MN9202) in biological medium by reversephase highperformance liquid chromatography.

目的：建立生物介质中1，4二氢2，6二甲基4(3硝基苯基)3，5吡啶二甲酸甲戊酯（MN9202）的高效液相色谱检测方法。

It manufactures heterocyclic, such as pyrazine, thiazole, furan, pyridine and sulf-compounds with their ramifications; and pharmaceutical intermediates such as veratraldehyde, isovanillin, sufurol, diacetyl, acetoin, and 2, 5-dimethyl pyrazine.

食用产品有吡嗪、噻唑、呋喃、吡啶等杂环系列及含硫系列的合成香料化合物。医药中间体产品有：藜芦醛、异香兰素、硫噻唑、丁二酮、乙偶姻、2，5-二甲基吡嗪等。

A chiral phase transfer catalyst, N-benzyl quinine bromide, was synthesized from natural chiral compound. And 2,5-bimethyl-4-(3-nitrobenzene)-1,4-bihydrogenation pyridine-3--4-methyl formate (viz. nitrendipine) was synthesized by this chiral phase transfer catalysis, and characterized by elemental analysis, infrared spectrum,1H nuclear magnetic resornace, and X-ray single-crystal diffraction.Key words: ammonium; chiral phase transfer catalyser; crystal structure

通过对天然手性物质进行修饰合成手性相转移催化剂N-苄基溴化奎宁，并对目标分子2，5-二甲基-4-(3-硝基苯)-1，4-二氢吡啶-3-甲酸乙酯-5-甲酸甲酯进行不对称催化合成，并通过红外光谱和核磁共振氢谱对化合物进行了表征，用X射线单晶衍射法测定了该化合物的晶体结构。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。