申请人:PFIZER INC.
公开号:EP0449445A2
公开(公告)日:1991-10-02
A method for preparing a compound of the formula
wherein Q is C-H or N; R¹ is C₁-C₄ alkyl, benzyl or p-nitrobenzyl and X and Y are independently selected from fluoro and chloro comprising reacting a compound of the formula
wherein Q is C-H or N; X and Y are independently selected from fluoro and chloro; and Z is fluoro, chloro, 1-imidazolyl or substituted 1-imidazolyl, wherein the 1-imidazolyl group is substituted with one or two substituents independently selected from C₁ to C₄ alkyl, with a compound of the formula
wherein M is an alkaline earth metal, Cu or Mn, n is 2, Vp-, wherein p is 1 or 2, is an anion of the formula
or a dianion of the formula
and R¹ is C₂ to C₆ alkyl or paranitrobenzyl, with the proviso that when Z is 1-imidazolyl or substituted 1-imidazole, M is magnesium, copper or manganese and with the proviso that when Z is fluoro, chloro or bromo, Vp- is a dianion of the formula V(b).
一种制备式化合物的方法
其中 Q 为 C-H 或 N;R¹ 为 C₁-C₄烷基、苄基或对硝基苄基,且 X 和 Y 独立选自氟和氯,该方法包括使式 1 的化合物发生反应
其中 Q 是 C-H 或 N;X 和 Y 独立地选自氟和氯,Z 是氟、氯、1-咪唑基或取代的 1-咪唑基,其中 1-咪唑基被一个或两个独立地选自 C₁ 至 C₄ 烷基的取代基取代。
其中 M 为碱土金属、Cu 或 Mn,n 为 2,Vp-(其中 p 为 1 或 2)为式中的阴离子
或式中的二阴离子
以及 R¹ 为 C₂ 至 C₆ 烷基或对硝基苄基,但当 Z 为 1-咪唑基或取代的 1-咪唑时,M 为镁、铜或锰,且当 Z 为氟、氯或溴时,Vp- 为式 V(b)的二元离子。