Cercosporidium henningsii. This phytoxin was found to inhibit selectively CaPkc1 and constitutes an interesting model for the design of novel antifungal molecules. In this research, 4,7,9-trihydroxy[1]benzofuro[3,2-d]pyrimidine-6-carboxamide (13) derived from (–)-cercosporamide was synthesized via a seven-step procedure by well-known reactions and evaluation of cytotoxicity and inhibition of CaPkc1. The
白色念珠菌( Ca Pkc1)的蛋白激酶 Pkc1 是参与
MAPK 途径的关键蛋白之一,被描述为生长、形态发生和对细胞壁应激反应期间细胞壁完整性的调节剂。(-)-cercosporamide 是一种抗真菌
天然产物,从植物病原体真菌Cercosporidium henningsii 中分离出来。发现这种植物毒素选择性地抑制Ca Pkc1,并构成了设计新型抗真菌分子的有趣模型。在这项研究中,4,7,9-trihydroxy[1]benzofuro[3,2-d]pyrimidine-6-carboxamide ( 13 ) 衍生自 (-)-cercosporamide 通过众所周知的反应的七步程序合成和评价细胞毒性和抑制Ca Pkc1。
生物测定显示 CaPkc1 抑制活性高 87%,细胞毒性比参考(-)-尾孢酰胺低 100 倍。