The present invention relates to a process for preparing a compound of formula (6a):
wherein Ar
1
represents an imidazolyl group which may be substituted with 1 to 3 substituents shown below; Ar
2
represents a pyridinyl group, a pyrimidinyl group or a phenyl group which may be substituted with 1 to 3 substituents; and R
11
represents a group selected from certain substituents.
本发明涉及一种制备式(6a)化合物的方法,其中Ar1代表一种
咪唑基团,该基团可能被下列1至3个取代基取代;Ar2代表一种
吡啶基团、
嘧啶基团或苯基团,该基团可能被下列1至3个取代基取代;R11代表从某些取代基中选择的一种基团。