Cesium carbonate → HCID 59496814, compound

Participants

Reaction Steps

A similar procedure as described in Example 43, step 4 was used, starting from 4-[3-[6-(3-benzyloxy-5-bromo-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (260 mg, 0.39 mmol), 3-thiophenylboronic acid (99 mg, 0.78 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (73 mg, 0.1 mmol), and cesium carbonate (253 mg, 0.78 mmol) to obtain 4-[3-[6-(3-benzyloxy-5-thiophen-3-yl-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (165 mg, 67%) as a colorless viscous oil: ES(+)-HRMS m/e calcd for C40H48O7S (M+Na)+ 695.3013. found 695.3008.

Provenance & Evidence