作者:M. Moser、T. Hudlicky、S. Sadeghi、E. Sternin
DOI:10.1002/jlcr.1383
日期:2007.6
The synthesis of deuterated chlorhexidine hydrochloride is reported. The specific labelling of the saturated chain is achieved through the combination of the previously reported synthesis of 2,2,3,3,4,4,5,5-(2H8)-hexane-1,6-diol and a synthesis of carbon-14 labelled chlorhexidine. This synthesis begins with commercially available hex-2,4-yne-1,6-diol, its protection as a bis-tetrahydropyranylether, and exhaustive deuterogenation under rhodium catalysis to produce, after acid hydrolysis of the protecting groups, the saturated octadeuterated 1,6-hexanediol. Conversion of this material in two steps to the corresponding 1,6-diaminohexane was followed by the generation of guanidines with dicyanimide and final condensation with p-chloroaniline. The title compound was obtained in 10 chemical steps and in 6% overall yield. Copyright © 2007 John Wiley & Sons, Ltd.
报告了重氢化盐酸氯己定的合成。通过结合之前报道的2,2,3,3,4,4,5,5-(2H8)-己烷-1,6-二醇的合成和碳-14标记的氯己定的合成,实现了饱和链的特定标记。该合成以市售的己-2,4-炔-1,6-二醇开始,将其保护为双四氢吡喃醚,并在铑催化下进行彻底的氘化,在保护基团酸水解后,产生饱和的八氘代1,6-己二醇。将该物质分两步转化为相应的1,6-二氨基己烷,然后用双氰胺生成胍,最后与对氯苯胺缩合。标题化合物通过10个化学步骤获得,总产率为6%。版权 © 2007 John Wiley & Sons, Ltd.