Methods Etiracetam was synthesized from 2 - pyrrolidone by N - alkylation and aminolysis.

方法 2- 吡咯烷酮经N - 烷基化、氨解反应合成乙拉西坦.

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Methods: Starting from diethanolamine, BP 897 was prepared via chlorination, cyclization, substitution aminolysis and condensation reaction.

方法: 以二羟乙基胺为起始原料, 经过氯化 、 环合 、 取代、肼解、缩合等反应合成BP897.

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The present invention is aminolysis process of preparing oil soluble nanometer titania rod.

本发明公开了一种胺解法合成油溶性二氧化钛纳米棒的制备方法.

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