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%.
In this article , we describe the occurrence of a lymphocele following ALIF at L 4? 5.下腰椎术造成淋巴管瘤形成鲜有报导, 而我们则正是提供了L4 - 5前部植入融合术中发生淋巴管瘤的病例.The lymphocele is internally drained into the peritoneal cavity by excising a segme...
He had sought work as a cowboy, rounding up cattle.他找了一份放牛的差事，负责把牛赶到一起。Fortunately, such cowboy firms are becoming rarer.幸运的是，这样的欺诈公司越来越少了。He wore frayed jeans and cowboy shirts.他穿着磨破的牛仔裤和牛仔衬衫。...