benzoyl

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,酰化,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%。