作者的前期工作发现拟原白头翁素对水稻白叶枯病菌和小麦赤霉病菌的杀菌活性比原白头翁素更高、结构更稳定．该文继续报道拟原白头翁素系列化合物的合成，并通过离体和大田小区试验测定其对小麦赤霉病菌和水稻白叶枯病菌的杀菌活性，筛选出杀菌活性更高的目标化合物 The author’s preliminary work found that the original anemonin had stronger bactericidal activity against Xanthomonas oryzae and Fusarium graminearum than the original Pulsatilla, and its structure was more stable. This article reports the synthesis of the original compound of Pulsatilla, and further studies the bactericidal activity of Pulsatilin against Fusarium graminearum and Xanthomonas oryzae by in vitro and field experiments, and screened the target compounds with higher bactericidal activity