5-[2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-1,2,5-thiadiazolidin-3-one 1,1-dioxide 、
methyl 2-[2-(3-bromophenyl)ethoxy]-6-hydroxybenzoate 在
四(三苯基膦)钯 caesium carbonate 作用下,
反应 2.0h,
以19%的产率得到5-{3'-[2-(2-carboxy-3-hydroxyphenoxy)ethyl]-4-methoxy-1,1'-biphenyl-3-yl}-1,2,5-thiadiazolidin-3-one 1,1-dioxide