3,4-dibromo-1-(tert-butyldimethylsilyl)-1H-pyrrole-2,5-dione 在
sodium hydride 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 13.0h,
以33%的产率得到13-[Tert-butyl(dimethyl)silyl]-3,10,13,16,23-pentazahexacyclo[14.7.0.02,10.04,9.011,15.017,22]tricosa-1(23),2,4,6,8,11(15),17,19,21-nonaene-12,14-dione