Its metallation and addition to cyclopentanone proceeded well to 40.其金属取代物能和环戊酮顺利地反应得到40....

metallation的音标：metallation的英式发音音标为：[metɔ:'leɪʃn]metallation的美式发音音标为：[metɔ'leɪʃn]...

金属取代...