4-bromo-6-(2,6-diethyl-phenyl)-2-methyl-nicotinic acid ethyl ester 、
tert-butyldimethyl(1,1-dimethylprop-2-ynyloxy)silane 在
四(三苯基膦)钯 、
cupric iodide 作用下,
以
二异丙胺 为溶剂,
以to give 4-[3-(tert-butyl-dimethyl-silanyloxy)-3-methyl-but-1-ynyl]-6-(2,6-diethyl-phenyl)-2-methyl-nicotinic acid ethyl ester as a pale yellow oil的产率得到4-[3-(tert-butyl-dimethyl-silanyloxy)-3-methyl-but-1-ynyl]-6-(2,6-diethyl-phenyl)-2-methyl-nicotinic acid ethyl ester