The present invention provides processes for preparation of substituted pyrazole compounds of formula II, that can be used as intermediates for preparation of substituted piperidine urea compounds useful for the treatment of dilated cardiomyopathy (DCM). R2 is independently selected from F, C1-C4 alkyl, C1-C4 haloalkyl, R3 is independently selected from H, F, C1-C4 alkyl, C1-C4 haloalkyl, R4 is Cl-C4 alkyl, R6 is H or a protecting group and R7 is selected from H, CI or trialkylsilyl.
本发明提供了制备式II的取代
吡唑化合物的过程,可用作制备用于治疗扩张型心肌病(DCM)的取代
哌啶脲化合物的中间体。其中,R2独立选择自F、C1-C4烷基、C1-C4卤代烷基,R3独立选择自H、F、C1-C4烷基、C1-C4卤代烷基,R4为Cl-C4烷基,R6为H或保护基,R7选择自H、CI或三烷基
硅基。