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: Acetylation between alcohol and benzoyl oxide was carried out using ZnBr2 as a Lewis acid catalyst in solvent-free condition. Some structures were characterized by NMR and IR.
中文: 以溴化锌为催化剂，在无溶剂条件下实现了醇与苯甲酸酐的酰化反应，部分产物经NMR和IR表征。
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英文: N-acetylcysteine is the acetylation of L-cysteine as the donor of sulfhydrylgruppe (-SH),not only has the great antioxidation,but also supplies the reduced glutathione in the body efficiently,and pretects the cell not to be injuried.The preventive effecti
中文: N-乙酰半胱氨酸是L-半胱氨酸的乙酰化物,作为巯基的供体,不仅具有强大的抗氧化作用,还能有效补充机体内降低的还原型谷胱苷肽,保护细胞免受损伤,其对急性肺损伤的防治作用已获得动物实验和临床研究结果的支持。
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英文: The influence of reaction time, reaction temperature and acetic anhydride volume on the degree of acetylation is discussed.
中文: 介绍了在用乙酸酐处理甲壳胺纤维制备再生甲壳素纤维过程中，反应温度、乙酰酐用量对乙酰化的影响。
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英文: When injected into the brain cavity near the hippocampus, TSA increased both the amount of acetylation and the level of expression of the glucocorticoid receptor in adult rats that had had little maternal care early in life.
中文: 在早年缺少母性关怀的老鼠中，当把TSA注射入海马体附近的脑室内时，乙酰化作用被增强了，糖皮质激素受体的表达也更活跃了。
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