(S)-5-(tert-butyldimethylsilyloxy)-2-methyl-4-(morpholine-4-carboxamido)pentan-2-yl-4-nitrophenyl carbonate 、
3-(3-(2-hydroxyethyl)-5,5-spiroadamantyl-1,2,4-trioxolan-3-yl)-N-(3-(2-oxopyrrolidin-1-yl)propyl)propanamide 在
4-二甲氨基吡啶 作用下,
以
甲苯 为溶剂,
反应 24.0h,
以35%的产率得到[(4S)-5-[tert-butyl(dimethyl)silyl]oxy-2-methyl-4-(morpholine-4-carbonylamino)pentan-2-yl] 2-[3-[3-oxo-3-[3-(2-oxopyrrolidin-1-yl)propylamino]propyl]spiro[1,2,4-trioxolane-5,2'-adamantane]-3-yl]ethyl carbonate