Nine derivatives 6-14 of carabrone (1) were synthesized and tested in vitro against Colletotrichum lagenarium Ell et Halst using the spore germination method. Among all of the derivatives, compounds 6-8 and 12 showed more potent antifungal activity than 1. Structure-activity relationships (SAR) demonstrated that the γ-lactone was necessary for the antifungal activity of 1, and the substituents on the C-4 position of 1 could significantly affect the antifungal activity.
利用孢子萌发法合成了卡拉布酮(1)的九种衍
生物 6-14 并对 Colletotrichum lagenarium Ell et Halst 进行了体外测试。结构-活性关系(
SAR)表明,γ-内酯是 1 的抗真菌活性所必需的,而 1 的 C-4 位上的取代基会显著影响其抗真菌活性。