Curtius rearrangement of 1-phenyl-1-cyclopropanecarboxylic acid (I) afforded amine (II), which was subsequently acetylated to produce amide (III) (1). Chloromethylation of (III) by means of chloromethyl methyl ether and TiCl4 gave rise to benzyl chloride (IV). This was finally condensed with pyrimidylpiperazine (V) in the presence of K2CO3 to yield the title compound.