Enhancing the usefulness of cross dehydrogenative coupling reactions with a removable protecting group
作者:Althea S.-K. Tsang、Katrin Ingram、Jennifer Keiser、D. Brynn Hibbert、Matthew H. Todd
DOI:10.1039/c3ob40503f
日期:——
A removable protecting group has been identified that allows the products of widely-used cross dehydrogenative couplings to be synthetically elaborated. The method can be used with enantiopure amines with no loss of enantiomeric excess. The methodology is exemplified by a new synthesis of enantiopure praziquantel, the drug used in the treatment of millions of people suffering from the neglected tropical disease, schistosomiasis.
已识别出一种可移除的保护基团,能够使广泛使用的交叉脱氢偶联反应的产物进行合成扩展。该方法可以与对映体纯的胺结合使用,且对映体过量没有损失。这种方法通过一种新的对映体纯的吡喹酮合成得到了示例,该药物用于治疗数百万患有被忽视的热带疾病——血吸虫病的人们。