furyl alcohol
- furyl alcohol的基本解释
-
-
呋喃基甲醇
- 相关中文词汇
- 呋喃基甲醇
- 更多网络例句与furyl alcohol相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The synthesis method comprises the following steps: adding 2-( 5-(dimethylamino methyl- 2- furyl methyl sulpho ethylamine and 1- methylthio- 1- methylamino- 2- nitro ethylene with a molar ratio of 1.04: 1 into water, heating to 48- 52 Deg. C, reacting 4.5 hours with a vacuum degree of 0.02- 0.05 MPa, cooling, adding sodium-hydroxide of concentration of 10% to regulate the PH value to 11.0- 11.4, filtrating and cooling the filtrate to 0- 2 Deg. C, crystallizing for 12 hours, centrifugally filtrating, and rinsing filter cake with purity water to prepare wet ranitidine alkali; dissolving ranitidine alkali in alcohol and reacting with chlorhydric acid to prepare ranitidine hydrochloride.
合成方法包括:将摩尔比为1.04∶1的2-(5-(二甲氨基甲基-2-呋喃基甲基硫代乙胺与1-甲硫基-1-甲胺基-2-硝基乙烯加入水中,升温至48-52℃,于真空度0.02~0.05MPa反应4.5小时,反应完毕降温,用10%氢氧化钠溶液调pH=11.0-11.4,抽滤,滤液降温至0~2℃,结晶12小时,离心甩滤,用纯化水漂洗滤饼,得雷尼替丁碱湿品;将雷尼替丁碱溶于乙醇中与盐酸反应,制备得到盐酸雷尼替丁,产品符合欧洲药典标准。
- 更多网络解释与furyl alcohol相关的网络解释 [注:此内容来源于网络,仅供参考]
-
butyric acid ethylene ester; dibutyrate glycol:乙二醇二丁酸酯
丁酸乙酯 butyric acid ethyl ester | 乙二醇二丁酸酯 butyric acid ethylene ester; dibutyrate glycol | 丁酸呋喃甲酯;丁酸糠酯 butyric acid furyl ester; furfuryl alcohol butyrate
-
furyl alcohol:呋喃基甲醇
furuncle of penis 阴茎疖 | furyl alcohol 呋喃基甲醇 | fusain group 丝炭组
-
butyric acid furyl ester; furfuryl alcohol butyrate:丁酸呋喃甲酯;丁酸糠酯
乙二醇二丁酸酯 butyric acid ethylene ester; dibutyrate glycol | 丁酸呋喃甲酯;丁酸糠酯 butyric acid furyl ester; furfuryl alcohol butyrate | 丁酸异丁酯 butyric acid isobutyl ester