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Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation, hydrogenation, cyclization with an overall yield of 8.05 %.
以苯甲酰氯为原料,经酰化, 还原, 环合等反应合成左旋西替利嗪盐酸盐,反应总收率为8.05%.
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Conclusion Levocetirizine is an effective and safe agent for the treatment of CIU.
结论左西替利嗪治疗慢性荨麻疹安全有效.
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