以下为句子列表：
英文: Abstract: 1-(4-Pyridinyl)-2-propanone,which is the key intermediate of synthesizing the milrinone ,a cardiotonic agent,was synthesized from 4-methyl-pyridine by acetylation in dichloromethane and phase transition catalyzing hydrolysis.The overall yield wa
中文: 文摘:报道了以4-甲基吡啶为原料，经酰化和相转移催化水解反应制备强心药物米利酮关键中间体1-(4-吡啶基)-2-丙酮的新合成方法，总收率达73.1%.
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英文: Abstract: 2 - Chloro - 5 - chloromethylpyridine is an importantintermediates of the pesticide and the pharmacology.
中文: 文摘:2－氯－5－氯甲基吡啶是农药和医药的重要中间体。
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英文: Abstract: The free radical alkylation of pyridine with fatty acids in the presence of acidic solvent,a series of derivatives of α－monosubstitute prydine were synthesized using ammonium persulfate and silver nitrate as catalyst.
中文: 文摘:吡啶与脂肪酸在酸性环境中用过二硫酸铵和硝酸银催化，发生自由基烷基化反应，得到产物主要是α－单取代吡啶。
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英文: Germanic norfloxacin was prepared for the first time via the reaction of sodium norfloxacin and germanic chloride in pyridine solvent,yield90％.
中文: 首次以吡啶作溶剂，用氟哌酸钠与四氯化锗反应，合成了氟哌酸锗，收率90％。
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英文: Objective The bioactivity of twelve novel pyridine ring derivatives of podophyllotoxin were tested against 3rd instar larvae of Culex pipiens pallens.
中文: 摘要目的研究新型吡啶类鬼臼毒素衍生物对3龄淡色库蚊幼虫的的毒杀活性。
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