(5-bromo-6-nitro-pyridin-2-yl)-methyl-carbamic acid tert-butyl ester 、
5-ethoxymethoxy-benzofuran-2-boronic acid 在
crude product 作用下,
以afforded 120 mg of the desired compound (13) as yellowish solid的产率得到tert-butyl [5-(5-(ethoxymethoxy)-2-benzofuranyl)-(6-nitro-2-pyridinyl)](methyl)carbamate