Semisynthesis and Biological Evaluation of Xanthone Amphiphilics as Selective, Highly Potent Antifungal Agents to Combat Fungal Resistance
作者:Shuimu Lin、Wan Ling Wendy Sin、Jun-Jie Koh、Fanghui Lim、Lin Wang、Derong Cao、Roger W. Beuerman、Li Ren、Shouping Liu
DOI:10.1021/acs.jmedchem.7b01348
日期:2017.12.28
New efficient antifungal agents are urgently needed to treat drug-resistant fungal infections. Here, we designed and synthesized a series of cationic xanthone amphiphilics as antifungal agents from natural α-mangostin to combat fungal resistance. The attachment of cationic residues on the xanthone scaffold of α-mangostin resulted in interesting antifungal agents with a novel mode of action. Two lead
迫切需要新型有效的抗真菌剂来治疗耐药性真菌感染。在这里,我们设计和合成了一系列阳离子x吨两亲性化合物,它们是从天然α-Mangostin中作为抗真菌剂来对抗真菌的抵抗力。阳离子残基在α-芒果的黄酮酮骨架上的附着产生了具有新颖作用方式的有趣的抗真菌剂。两种先导化合物(1和2)对多种真菌病原体均显示出有效的抗真菌活性,其中包括耐药性白色念珠菌,曲霉和镰刀菌。菌株,对哺乳动物细胞的细胞毒性和溶血活性低。两种化合物均可通过直接破坏真菌细胞膜而迅速杀死真菌,并避免产生耐药性。另外,化合物1在真菌性角膜炎的鼠模型中显示出有效的体内抗真菌活性。据我们所知,以前尚未报道基于膜的基于黄酮的抗真菌剂。这些结果表明,化合物1和2可能是治疗耐药性真菌感染的有前途的候选药物。