中间体

Methyl-4-aminobenzyl sulfonamide, a key intermediate for synthesis of the pharmaceutical substance Sumatriptan, was prepared throught four steps.

甲基 4 氨基苯甲基磺酰胺是一种重要的医药中间体，主要用于合成药物舒马普坦。

The invention belongs to the synthesis technical field of pharmaceutical intermediates, and more particularly relates to a preparation method of Cis-4-(2-bromine ethylene) benzene sulfonamide.

本发明属于药物中间体合成技术领域，具体涉及一种顺式-4-(2-溴乙烯基)苯磺酰胺的制备方法。

Advances in applications and technology for sulfonation using sulfur trioxide in manufacturing dye intermediates are reviewed.

综述了三氧化硫磺化在染料中间体生产中的应用和技术进展。

OBJECTIVE To obtain the key intermediate of almotriptan ,1-(4-Aminophenylmethane sulfonyl)pyrrolidine.

目的合成得到选择性5-HT1B/1D受体激动剂阿莫曲普坦的关键中间体对氨基苯甲磺酰吡咯烷。

Nitro-4-methylsulfonylbenzoic acid was prepared from 4-toluene sulfonyl chloride by the reaction of Alkylation (in the condition of sodium sulfite and baking soda), Nitrification (in the condition of nitric acid and vitriol) and Oxidation reaction (in the condition of nitric acid and catalyzer).

研究了以对甲苯磺酰氯为起始原料，首先通过亚硫酸钠和碳酸氢钠的水溶液进行烷基化、其次在浓硝酸和浓硫酸加热回流的条件下峭化、最后在浓硝酸和催化剂的条件下进行氧化，3步反应合成了玉米田高效除草剂甲基磺草酮的重要中间体2-硝基－4-甲磺酰基苯甲酸。

Then two series of yellow sulfonamide dyes are synthesized by the reaction of the sulfonyl chlorides and ammonia or different fatty amines in the presence of acid-binding reagent. The structures of sulfonyl chloride intermediates and sulfonamide dyes are confirmed by FTIR,~1H NMR and mass spectrometry.

将所合成的磺酰氯化合物在缚酸剂作用下分别与含有不同碳数的饱和脂肪胺发生缩合反应，合成了两个系列黄色偶氮型磺酰胺染料，并利用红外光谱、核磁共振氢谱和质谱表征了磺酰氯中间体和磺酰胺染料的分子结构。

The main products are the man-made natural/synthesis sandalwood series products , non-ionic surface-active agent series products and each kind of clients-ordered medicine intermediate series products.

主要产品有人造天然/合成檀香系列产品、非离子表面活性剂系列以及根据客户要求定点生产的各种医药中间体系列。

Our scientific research, development, production, operating in one, are specializing in the production of pharmaceutical intermediates business, main products has L p-hydroxyphenylglycine Deng sylvite, L-p-hydroxyphenylglycine, L-annual production of 1,000 tons of p-hydroxyphenylglycine, L-leucine p-Tang Sylvite 1500 tons, sold more than the national pharmaceutical companies have some products for export and domestic enterprises set up a long-term and stable cooperative relations high-quality products in order to win the praise of the vast number of users.

我公司集科研、开发、生产、经营于一体，是医药中间体专业生产企业，主要产品有左旋对羟基苯甘氨酸邓钾盐、左旋对羟基苯甘氨酸，年生产左旋对羟基苯甘氨酸1000吨，左旋对羟基苯氨酸邓钾盐1500吨，销往全国多家药厂，已有部分产品出口，并与国内多家企业建立了长期、稳定的合作关系，以高质量的产品赢得了广大用户的赞誉。

Now they possess twenty more series of product including glycyrrhizic acid, ammonium salt, sylvite, sodium salt, glycyrrhetinic acid, derivatives of the glycyrrhetinic acid etc. which are chiefly applied to the pharmaceuticals, food, cosmetic and tobacco industry as material, intermediate, synergistic agent and additive.

现拥有以甘草酸及铵盐、钾盐、钠盐，以及甘草次酸和甘草次酸的各种衍生物等二十多种系列产品，主要用于医药、食品、化妆品、烟草等行业的原料、中间体、增效剂和添加剂。

Firstly,we studied the synthesization and spectral analysis of the ionic liquids.

首先，优化了离子液体中间体Cl的合成工艺路线并对PF_6离子液体的结构进行光谱表征。

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％。