The embodiments herein provide a composition and a method of synthesizing a composition comprising an aliphatic amino acid biosynthesis inhibitor having an antifungal activity. The composition comprises 2-oxo-2H-chromen-7-yl propiolate, diethyl-hex-2-en-4-yne-dioate and dinonyl-hex-2-en-4-yne-dioate. The composition inhibits a biosynthesis of an aliphatic amino acid in a fungal biological system. The aliphatic amino acid is selected from a group consisting of leucine, isoleucine and valine. The composition is used with a concentration of 0-200 μg/ml. The method comprises mixing solutions of dicyclohexylcarbodiimide (DCC) and Dimethylaminopyridine (DMAP) with alcohol, acetylene carboxylic acid and dichloromethane to obtain a mixture which is stirred filtered and washed with ether. The solvents are evaporated to obtain a residue that is dissolved in dichloromethane and stirred with a catalyst. The extra solvents are evaporated to obtain the derivative compound and purified by silica gel column chromatography.
本文提供了一种合成含有具有抗真菌活性的脂肪族
氨基酸生物合成
抑制剂的组合物和合成组合物的方法。该组合物包括2-氧代-2H-
香豆素-7-基
丙炔酸酯、
二乙基-
己-2-烯-4-炔二酸酯和二辛基-
己-2-烯-4-炔二酸酯。该组合物在真菌
生物系统中抑制脂肪族
氨基酸的
生物合成。脂肪族
氨基酸选自亮
氨酸、
异亮氨酸和缬
氨酸等一组
氨基酸。该组合物的使用浓度为0-200μg/ml。该方法包括将二环己基碳二
亚胺(
DCC)和二甲基
氨基吡啶(
DMAP)的溶液与醇、
乙炔羧酸和
二氯甲烷混合,以获得混合物,该混合物经过搅拌、过滤和
乙醚洗涤。然后蒸发溶剂以获得残留物,该残留物在
二氯甲烷中溶解并与催化剂搅拌。额外的溶剂被蒸发以获得衍
生物化合物,并通过
硅胶柱层析纯化。