作者:Maria Milewska、Marta Prokop、Iwona Gabriel、Marek Wojciechowski、Sławomir Milewski
DOI:10.3390/molecules171214022
日期:——
Thirteen structural analogs of two initial intermediates of the L-a-aminoadipate pathway of L-lysine biosynthesis in fungi have been designed and synthesized, including fluoro- and epoxy-derivatives of homoaconitate and homoisocitrate. Some of the obtained compounds exhibited at milimolar range moderate enzyme inhibitory properties against homoaconitase and/or homoisocitrate dehydrogenase of Candida albicans. The structural basis for homoisocitrate dehydrogenase inhibition was revealed by molecular modeling of the enzyme-inhibitor complex. On the other hand, the trimethyl ester forms of some of the novel compounds exhibited antifungal effects. The highest antifungal activity was found for trimethyl trans-homoaconitate, which inhibited growth of some human pathogenic yeasts with minimal inhibitory concentration (MIC) values of 16–32 mg/mL.
我们设计并合成了真菌 L-赖氨酸生物合成途径中 L-a-氨基己二酸盐两个初始中间体的 13 种结构类似物,包括高乌头酸盐和高异柠檬酸盐的氟和环氧衍生物。其中一些化合物在毫摩尔范围内对白色念珠菌的高乌头酸酶和/或高异柠檬酸脱氢酶表现出适度的酶抑制特性。酶-抑制剂复合物的分子模型揭示了同异柠檬酸脱氢酶抑制作用的结构基础。另一方面,一些新型化合物的三甲酯形式显示出抗真菌作用。反式高乌头酸三甲酯的抗真菌活性最高,它能抑制一些人类致病酵母菌的生长,最小抑制浓度(MIC)值为 16-32 毫克/毫升。