、
5-benzoyl-6-(bromomethyl)-1,3-dimethylpyrimidine-2,4(1H,3H)-dione 在
三乙胺 作用下,
以
乙腈 为溶剂,
以76%的产率得到methyl 2-(5-(1,3-dimethyl-2,4-dioxo-5-phenyl-3,4-dihydro-1H-pyrrolo[3,4-d]pyrimidin-6(2H)-yl)-2-phenylthiophen-3-yl)-1-(2-methoxyethyl)-1H-benzo[d]imidazole-5-carboxylate