In the production of fluorine-containing 1,4-disubstituted piperidine derivatives by the reaction of a carboxylic acid of formula where Ar represents aryl or heteroaryl and R.sup.10 represents C.sub.3 -C.sub.6 cycloalkyl in which up to 4 hydrogen atoms are substituted with fluorine or C.sub.3 -C.sub.6 cycloalkyl having 1 to 2 protected or unprotected hydroxyl or oxo groups, or a reactive derivative thereof, with a piperidine derivative of formula [IV] as defined in the specification, especially useful results are obtained using 4-amino-1-(6-aminopyridin-2-ylmethyl)piperidine or a salt thereof, e.g., trihydrochloride, as the piperidine derivative.
通过使用公式为Ar表示芳基或杂环芳基,R.sup.10表示C.sub.3-C.sub.6环烷基,其中最多4个氢原子被
氟取代或C.sub.3-C.sub.6环烷基,具有1到2个保护或未保护的羟基或氧代基,或其反应性衍
生物的公式的
羧酸与规范中定义的公式[IV]的
哌啶衍
生物反应,特别是使用4-
氨基-1-(6-
氨基吡啶-2-基甲基)
哌啶或其盐,例如三盐酸盐,作为
哌啶衍
生物,可以获得特别有用的含
氟1,4-二取代
哌啶衍
生物的产物。