当分离、纯化得到一种天然产物 ,确认其农药活性并阐明其化学结构后 ,就可能对其进行半合成或全合成研究。有许多理由对具有农药活性的天然产物进行全合成 ;首先 ,如果天然产物的化学结构仅由光谱学数据推导而确定 ,那么全合成就能进一步确定其化学结构。其次 ,天然产物资源有 When isolated and purified to obtain a natural product, confirmed its pesticide activity and clarify its chemical structure, it may be semi-synthetic or total synthesis of the study. There are many reasons for the total synthesis of natural products with pesticidal activity; first, if the chemical structure of a natural product is only deduced from spectroscopic data, total synthesis further determines its chemical structure. Second, there are natural product resources