以下为句子列表：
英文: Acylation activity of hydroxyl groups in methyl cholicate has been determined by the use of methacryloyl chloride, methacryloyl anhydride and methacrylic acid as the acylating agents.
中文: 以甲基丙烯酰氯、甲基丙烯酸酐和甲基丙烯酸作酰化剂，研究了胆酸甲酯分子中羟基的反应活性。
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英文: METHODS Linezolid was prepared by the steps of substitution, reduction, acylation and condensation with biacetyl compond from the starting material 3,4-difluoronotrobenzene.
中文: 方法以3,4-二氟硝基苯为原料，经取代、还原、酰化、再与侧链双乙酰化合物缩合得到目标化合物。
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