It represents an example of a heterocycle being formed as transient species.它仍然是在反应中生成过渡状态的杂环的实例.The reduced heterocycle 46 conveniently separates out during the reaction.在反应过程中被还原的杂环(46)可以方便地分离出来....

heterocycle的音标：heterocycle的英式发音音标为：['hetərəʊsaɪkl]heterocycle的美式发音音标为：['hetəroʊsaɪkl]...

n.杂环...