Lactones with Methylcyclohexane Systems Obtained by Chemical and Microbiological Methods and Their Antimicrobial Activity
作者:Małgorzata Grabarczyk、Katarzyna Wińska、Wanda Mączka、Anna Żołnierczyk、Barbara Żarowska、Mirosław Anioł
DOI:10.3390/molecules20023335
日期:——
Eight new lactones (δ-chloro-, δ-bromo- and δ-iodo-γ-lactones), each with a methylcyclohexane ring, were obtained by chemical means from (4-methylcyclohex-2-en-1-yl) acetic acid or (6-methylcyclohex-2-en-1-yl) acetic acid. Whole cells of ten fungal strains (Fusarium species, Syncephalastrum racemosum and Botrytis cinerea) were tested on their ability to convert these lactones into other products. Some
通过化学方法从 (4-methylcyclohex-2-en-1-yl) 乙酸中获得了八种新的内酯(δ-氯-、δ-溴-和 δ-碘-γ-内酯),每个内酯都带有一个甲基环己烷环或(6-甲基环己-2-烯-1-基)乙酸。测试了十种真菌菌株(镰刀菌属、总状镰孢菌和灰葡萄孢菌)的全细胞将这些内酯转化为其他产品的能力。一些测试的真菌菌株在水解脱卤过程中将 C-5 处带有甲基的氯、溴和碘内酯转化为 2-羟基-5-甲基-9-氧杂双环[4.3.0]壬烷-8-酮。当相同的内酯在 C-3 处具有甲基时,没有观察到卤代内酯的结构改变。在大多数情况下,产品的光学纯度较低或中等,其中氯内酯(45.4%)和碘内酯(45.2%和47.6%)的比率最高。参照它们的气味测试所有获得的化合物。检查了七种卤内酯和通过生物转化具有 5-甲基环己烷环的卤内酯获得的羟基内酯的抗菌活性。这些化合物能够抑制某些细菌、酵母菌和真菌的生长。