N,N-双(甲氧基甲基)二氮-18-冠-6 、
1,8,8-trimethyl-3-aza-bicyclo[3.2.1]octane-2,4-dione 以
苯 为溶剂,
以92%的产率得到1,8,8-trimethyl-3-[[16-[(1,8,8-trimethyl-2,4-dioxo-3-azabicyclo[3.2.1]octan-3-yl)methyl]-1,4,10,13-tetraoxa-7,16-diazacyclooctadec-7-yl]methyl]-3-azabicyclo[3.2.1]octane-2,4-dione