According to the experimental results, it was assumed that the cyclization was taken by nucleophilic attack.

根据实验结果，我们推测反应的关键步骤为亲核进攻。

youdao

According to the experimental results, it was assumed that the cyclization was taken by nucleophilic attack.

根据实验结果，我们推测反应的关键步骤为亲核进攻。

youdao