A similar procedure as described in Example 44, step 3 was used, starting from 4-[3-[6-(3-bromo-5-ethoxy-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (305 mg, 0.5 mmol), 2-chloro-pyridin-4-ylboronic acid (161 mg, 1.0 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (55 mg, 0.075 mmol), and cesium carbonate (331 mg, 1.0 mmol) to obtain 4-[3-{6-[3-(2-chloro-pyridin-4-yl)-5-ethoxy-phenoxy]-hexyl}-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (115 mg, 36%) as a light yellow oil: ES(+)-HRMS m/e calcd for C36H46ClNO7 (M+H)+ 640.3036. found 640.3032.
