2-(di-(tert-butoxycarbonyl)amino)pyrimidine 、 3-(4-(1-(2(S)-3-dihydroxypropanoyl)-1,2,5,6-tetrahydropyrid-4-yl)-3,5-difluorophenyl)-5(S)-pyrazin-2-ylaminomethyloxazolidin-2-one 以to give the title product as a white solid (3.2 g)的产率得到1,1-dimethylethyl 2-pyrimidyl carbamate