The present invention provides, inter alia, a process for producing a compound of Formula (I): wherein A1, R1, R2, R3, R4, R5 and R6 are as defined herein. The present invention further provides intermediate compounds utilised in said process, and methods for producing said intermediate compounds.
本发明提供了一种生产化合物的方法,该化合物的
化学式为(I):其中A1、R1、R2、R3、R4、R5和R6如本文所定义。本发明还提供了用于所述方法的中间化合物,以及生产所述中间化合物的方法。