1-(tert-butyldimethylsilyl)-5-methyl-1H-indole 、 dimethyl 3-oxo-2,4-dipivaloyl-2,4-diazabicyclo[3.1.0]hexane-6,6-dicarboxylate 在
silver hexafluoroantimonate 、 (2,2'-(propane-2,2-diyl)bis(4,5-dihydrooxazole-4,2-diyl))bis(bis(3,5-dimethylphenyl)methanol) 、 copper dichloride 作用下,
以
甲苯 为溶剂,
反应 42.0h,
以77%的产率得到dimethyl 2-(5-(1-(tert-butyldimethylsilyl)-5-methyl-1H-indol-3-yl)-2-oxo-1,3-dipivaloylimidazolidin-4-yl)malonate