METHOD: It was synthesized from methyl 5-chloro-2-hydroxyl benzoic acid via nine-step reaction with nitration, reduction, etc.
方法：以5 氯2 羟基苯甲酸甲酯为原料，经硝化、还原等九步反应合成。
The synthesis of Cilastatin sodium started from ethyl acetoacetate and 1-bromo-5-chloropentane, through 3 steps to produce ethyl 7-chloro-2-oxoheptanoate;
西司他丁钠的合成以乙酰乙酸乙酯和1-溴-5-氯戊烷为原料，经活性亚甲基烃化、成肟和水解3步反应得7-氯-2-氧庚酸乙酯；
In this thesis, 2-chloro-5-chloromethyl pyridine is ammoniated, which followed by the reaction with N-cyano ethyl ethylimidoate, finally is methylated to gain the objective product.
本文用2-氯-5-氯甲基吡啶经氨基化，和N-氰基乙亚胺酸乙酯反应，最后甲基化得到吡虫清。
The invention discloses a detergent, which is sodium salt containing 5-chloro-2-methylisothiazolone dissolved in organic solvent or 5-chloro-2-methylisothiazolone dissolved in water.
本发明公开了一种清洁剂，是在有机溶剂中溶解有5-氯-2-甲基 异噻唑啉酮或在水中溶解有5-氯-2-甲基异噻唑啉酮的钠盐。
A synthetic method of direct cyclization was researched that 2-chloro-2-chloromethyl-4-cyanobutyraldehyde was reacted with phosphorus oxychloride to get 2-chloro-5-chloromethylpyridine.
研究了一种直接环合的方法，用2-氯-2氯甲基- 4-氰基丁醛与三氯氧磷反应来制备2-氯-5-氯甲基吡啶。
The synthesis of 5-chloro-2-methyl-4-isothiazoline-3-ketone with multisodium sulfide, methyl acrylate, methyl amine, had been studied. The product had good ability of killing the mold and bacteria.
以多硫化钠、丙烯酸甲酯、甲胺等为原料合成杀菌剂5 -氯- 2 -甲基- 4 -异噻唑啉- 3-酮，具有很好的杀灭细菌、霉菌的能力。
Objective: To study the effects of combination of quercetin monosulfate and 5 'chloro 5' deoxyadenosine on platelet aggregation induced by thrombin in rabbits.
目的：研究槲皮素单硫酸酯和5-氯- 5-脱氧腺苷合用对凝血酶诱导兔血小板聚集的影响。
A method was established for determining two intermediates in synthesis of imidacloprid, 2 chloro 5 methyl pyridine and 2 chloro 5 chloromethyl pyridine by HPLC.
建立了用高效液相色谱法同时测定农药吡虫啉中间体2 -氯- 5 -甲基吡啶和2 -氯- 5 -氯甲基吡啶含量的方法。
Objective:To synthesize a key intermediate of anti-hypertension drug Losartan, 2-butyl-4-chloro-5-formylimidazole(1).
目的：合成抗高血压药氯沙坦的关键中间体2-正丁基-4-氯-5-甲酰基咪唑。
Objective:To synthesize a key intermediate of anti-hypertension drug Losartan, 2-butyl-4-chloro-5-formylimidazole(1).
目的：合成抗高血压药氯沙坦的关键中间体2-正丁基-4-氯-5-甲酰基咪唑。
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