ABSTRACT Umeclidinium bromide, a drug used for chronic obstructive pulmonary disease, is synthesized through a new intermediate of phenyl(quinuclidin-4-yl)methanone. This novel method with simple operation flow and cheap reagents, makes it suitable for scale up. The overall four-step process provides umeclidinium bromide in 29% yield and the purity up to 99.83%. The X-ray crystal structure of the drug
摘要 Umeclidinium bromide 是一种用于慢性阻塞性肺疾病的药物,它是通过一种新的
苯基(
奎宁环-4-基)甲
酮中间体合成的。这种新方法操作流程简单,试剂便宜,适合扩大规模。整个四步过程以 29% 的收率和高达 99.83% 的纯度提供了
溴化乌美
溴铵。首次报道了药物分子的 X 射线晶体结构。图形概要