butyl 3-iodobenzyl(2-(butylamino)-2-oxoethyl)carbamate 、
methyl 2-(4-methyl-2-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)phenoxy)acetate 以{[3′-({(butoxy carbonyl)[2-(butylamino)-2-oxoethyl]amino}methyl)-5-methylbiphenyl-2-yl]oxy}acetic acid (8) was obtained as a white solid (9.2 mg; 0.019 mmol; 14%)的产率得到{[3'-({(butoxy carbonyl)[2-(butylamino)-2-oxoethyl]amino}methyl)-5-methylbiphenyl-2-yl]oxy} acetic acid