PROCESS FOR THE PREPARATION OF TRIFLUOROALKYL-PHENYL AND HETEROCYCLIC SULFONAMIDES
申请人:Connolly Terrence Joseph
公开号:US20090023903A1
公开(公告)日:2009-01-22
A novel trifluoroacetylating agent, i.e., N-trifluoroacetylmorpholine, is described. This reagent is useful in the preparation of phenyl and heterocyclic sulfonamide compounds. Methods are therefore described for preparing sulfonamide compounds of the following structure, wherein R
1
and R
2
are defined herein, using N-trifluoroacetylmorpholine. The sulfonamide compounds that may be prepared as described herein include 5-chloro-thiophene-2-sulfonic acid [(1S,2R)-2-(3,5-difluoro-phenyl)-3,3,3-trifluoro-1-hydroxymethyl-propyl]-amide using N-trifluoroacetylmorpholine.
描述了一种新型三氟乙酰化试剂,即N-三氟乙酰吗啡啶。该试剂可用于制备苯基和杂环磺酰胺化合物。因此,描述了使用N-三氟乙酰吗啡啶制备以下结构的磺酰胺化合物的方法,其中R1和R2在此处定义。根据所述方法可制备的磺酰胺化合物包括使用N-三氟乙酰吗啡啶的5-氯噻吩-2-磺酸[(1S,2R)-2-(3,5-二氟苯基)-3,3,3-三氟-1-羟甲基丙基]-酰胺。