申请人:Eisai R&D Management Co., Ltd.
公开号:EP2058302A1
公开(公告)日:2009-05-13
A process for preparing a compound represented by the formula (I):
comprising reacting a compound represented by the formula (II) or salt thereof:
with a compound represented by the formula (III):
in the presence of a condensation reagent,
wherein R1 represents 1) optionally substituted azetidin-1-yl, 2) optionally substituted pyrrolidin-1-yl, 3) optionally substituted piperidin-1-yl, etc.; R2, R3, R4 and R5 may be the same or different and each represents hydrogen or fluorine; and R6 represents hydrogen or fluorine.
一种制备式 (I) 所代表化合物的工艺:
包括使式 (II) 所代表的化合物或其盐发生反应:
与式 (III) 所代表的化合物反应:
在缩合试剂存在下进行反应、
其中 R1 代表 1)任选取代的氮杂环丁烷-1-基,2)任选取代的吡咯烷-1-基,3)任选取代的哌啶-1-基等;R2、R3、R4 和 R5 可以相同或不同,各自代表氢或氟;R6 代表氢或氟。