decreased the activities. Thus, it was concluded that the present research provided a new series of 2-aryl-6-chloro-3,4-dihydroisoquinolin-2-iums with excellent antifungal potency, and the results were of importance for the structure optimization design, synthesis and development of more potent isoquinoline antifungal agents.
合成了34种新的2-芳基-6-
氯-
3,4-二氢异喹啉-2-
溴化
溴化物,并通过光谱分析阐明了它们的结构。用菌丝体线性生长速率法评价了对
交链孢霉,弯孢弯曲菌和马氏缬
氨酸的抗真菌活性。
SAR也进行了讨论。所有化合物均以25μg/ mL的浓度对每种真菌表现出一定的活性。相比
嘧菌酯,市售的杀真菌剂,31的34个试验化合物显示出对更高的抑制率C.新月弯孢和10反对更有效A.交替和V.马里。化合物5 - 4,5 - 2和5 - 34显示针对最高的活性A.备用(
EC 50 = 10.3微克/毫升),C.霉(
EC 50 = 4.6微克/毫升)和V.马里(
EC 50 = 3.9微克/毫升),分别优于
嘧菌酯(
EC 50 = 12.8、71.9、37.2μg/ mL)。化合物5 - 4显示针对每个真菌的良好活动,
EC 50值为10.3,4.7,和18.0微克/毫升,而5 - 34显示针对优异的活动V.马里(
EC 50