反应详情

A similar procedure as described in Example 43, step 4 was used, starting from 4-[3-[6-(3-acetyl-5-bromo-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (303 mg, 0.5 mmol), 3,4-methylenedioxyphenylboronic acid (166 mg, 1.0 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (73 mg, 0.1 mmol), and cesium carbonate (326 mg, 1.0 mmol) to obtain 4-[3-[6-(3-acetyl-5-benzo[1,3]-dioxol-5-yl-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (235 mg, 73%) as a colorless oil: ES(+)-HRMS m/e calcd for C38H46O9 (M+Na)+ 669.3034. found 669.3031.