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氢溴酸

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Objective To objerve the effect of arecoline hydrobromide on experimental gastric ulcer patients.

目的研究氢溴酸槟榔碱抗实验性胃溃疡的作用。

Arecoline hydrobromide possesses the inhibition and protective ef...

结论氢溴酸槟榔碱具有抗实验性胃溃疡的作用。

place establishs a method simple, repeatability is good, apply to what solvent remains in element of armour of tall black of hydrogenous bromic acid to determine.

结论所建方法简单,重复性好,适用于氢溴酸高乌甲素中残留溶剂的测定。

Butyl bromide was synthesized from hydrobromic acid(48%) and 2-butylalcohol by adding concentrated sulfuric acid.

以质量分数为48%的氢溴酸水溶液、仲丁醇为反应原料,浓硫酸为催化剂合成仲溴丁烷,考察了反应原料和催化剂用量以及反应时间对产率的影响。

N-butanol was prepared with bromine and hydrobromic acid in the laboratory.

实验室制备正溴丁烷是用正丁醇与氢溴酸反应制备。

Hydrobromic acid and hydroiodic acid, but also react each other and give out the hydrosulfide gas.

实验结果表明黑色硫化汞能溶于热浓盐酸、氢溴酸和氢碘酸中,并与其反应放出硫化氢气体。

Keywords Black mercury sulfide;Thickish hot hydrochloric acid;Hydrobromic acid;Hydroiodic acid;Dissolve

黑色流化汞;热浓盐酸;氢溴酸;氢碘酸;溶解

Results The synthesis condition was improved. The method of methane sulfonic acid/DL-methionine was found an ideal substitute of BBr3 for less cost. While using hydrobromic acid, the O-demethylation and hydrolyzation could be combined in one stage.

结果 优化了纳洛酮的合成工艺,甲磺酸/DL-甲硫氨酸法试剂价格低廉,可降低生产成本;而氢溴酸法不但试剂价格更低,还可将去氧甲基化和水解合并为一步反应,使新工艺的总收率提高到59.90%,产品质量符合中国药典。

A method for the synthesis of lappaconitine hydrobromide by the reaction of dibromoalkyl with lappaconitine is presented.

报道了以双溴代烷烃和刺乌头碱合成刺乌头碱氢溴酸盐的方法。

According to the requirements from different clients, we have adopted CP2000,BP98,USP standards to produce Galanthamine Hydrobromide .We also have other products, such as Dihydrogalanthamine hydrobromide (98%HPLC), Lycorine(98%HPLC)and so on.

公司其它产品有氢溴酸二氢加兰他敏(98% HPLC)、石蒜碱(98% HPLC),虎杖提取物、灵芝提取物、枳实提取物、黑升麻提取物、绿茶提取物、枳实黄酮等。

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