用热环化过程中分子活动性的变化解释了酰亚胺化反应过程中环化速率的变化。
The change of imidization velocity during thermally staged curing was explained from molecular activity.
卟啉是一类自然界中存在的大环化合物，在生命体的新陈代谢过程中起重要作用。
The porphyrins are a class of naturally occurring macrocyclic compounds, which play a very important role in the metabolism of living organisms.
紫杉烯合酶是一种二萜环化酶，催化牛儿基牛儿基焦磷酸形成紫杉醇生物合成过程中的中间体紫杉烯。
Taxadiene synthase, a diterpene cyclase, catalyzes the conversion of geranylgeranyl diphosphate (GGPP) to taxadiene, a key intermediate in Taxol biosynthesis in yew.
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