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美国正在进行多硝基笼状化合物的合成,目前已进入第二阶段,把硝基引入了七种碳氢笼状化合物,到目前为止已经合成了12个含多达四个硝基的热安定的多硝基笼状化合物。
The United States is currently conducting the synthesis of polynitro-cage compounds and has now entered the second phase of introducing nitro groups into seven hydrogen-carbon cage compounds. So far, 12 thermostabilites containing up to four nitro groups have been synthesized Of polynitron cage compounds.