translation.en: And I said, first of all, let me do the calculation on that compound, bottom right, which is related to coumarin, but has an extra pentagon inserted into the molecule.
translation.zh: 然后 我说 让我先计算一下那个化合物 右下角那个 它和香豆素有一定的关系 但是比香豆素的结构多了一个五边形