1-(([(4S)-4-methyl-2,5-dioxoimidazolidin-4-yl]methyl)sulfonyl)-1,2,3,6-tetrahydropyridin-4-yl trifluoromethanesulfonate 、
trimethyl(tetrahydro-2H-thiopyran-4-ylethynyl)silane 在
bis-triphenylphosphine-palladium(II) chloride
copper(l) iodide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以25%的产率得到(S)-5-methyl-5-[4-(tetrahydro-thiopyran-4-ylethynyl)-3,6-dihydro-2H-pyridine-1-sulfonylmethyl]-imidazolidine-2,4-dione