(5S)-5-methyl-3-(2-trimethylsilylethoxymethyl)-5-[[4-(2-trimethylsilylethynyl)-3,6-dihydro-2H-pyridin-1-yl]sulfonylmethyl]imidazolidine-2,4-dione 在
potassium fluoride 作用下,
以
甲醇 为溶剂,
以94%的产率得到(5S)-5-[(4-ethynyl-3,6-dihydro-2H-pyridin-1-yl)sulfonylmethyl]-5-methyl-3-(2-trimethylsilylethoxymethyl)imidazolidine-2,4-dione