Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.
以苯甲酰氯,经酰化,还,环等反应成左西利嗪盐酸盐,反应总收率8.05%。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
Many drugs exist, like benzoyl peroxide, which kills specific acne-causing bacteria, salicylic acid, which helps to remove dead skin blockages, retinoids, which reduce sebum production, and a variety of others —though some drugs can have severe side effects.
目前有许多物,像是过氧化苯,那能消灭特定的致痘细菌,杨酸,有助去除死皮造成的阻塞,维他命 A 酸,那能减少皮脂生成,还有其它许多物--不过有些物可能会造成严重副作用。