1: 1-bromo-6-chloro-hexane; n-butyl zinc bromide With Pd-PEPPSI-IPr; lithium bromide in tetrahydrofuran; 1,3-dimethyl-imidazolidin-2-one T=20°C; Negishi coupling reaction; 24 h; Inert atmosphere; 2: C12H12BrNO2Zn With Pd-PEPPSI-IPr; lithium chloride in tetrahydrofuran; 1,3-dimethyl-imidazolidin-2-one T=20°C; Negishi coupling reaction; 24 h; Inert atmosphere; chemoselective reaction;