Ni Shuaishuai, Wei Hanwen, Li Baoli, Chen Feifei, Liu Yifu, Chen Wenhua, Xu Yixiang, Qiu Xiaoxia, Li Xiaokang, Lu Yanli, Liu Wenwen, Hu Linhao, Lin Dazheng, Wang Manjiong, Zheng Xinyu, Mao Fei, Zhu Jin, Lan Lefu, Li Jian
Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology , Shanghai 200237, China.
State Key Laboratory of Drug Research, Shanghai Institute of Material Medical, Chinese Academy of Sciences , Shanghai 201203, China.
J Med Chem. 2017 Oct 12;60(19):8145-8159. doi: 10.1021/acs.jmedchem.7b00949. Epub 2017 Sep 21.
Our previous work ( Wang et al. J. Med. Chem. 2016 , 59 , 4831 - 4848 ) revealed that effective benzocycloalkane-derived staphyloxanthin inhibitors against methicillin-resistant Staphylococcus aureus (S. aureus) infections were accompanied by poor water solubility and high hERG inhibition and dosages (preadministration). In this study, 92 chroman and coumaran derivatives as novel inhibitors have been addressed for overcoming deficiencies above. Derivatives 69 and 105 displayed excellent pigment inhibitory activities and low hERG inhibition, along with improvement of solubility by salt type selection. The broad and significantly potent antibacterial spectra of 69 and 105 were displayed first with normal administration in the livers and hearts in mice against pigmented S. aureus Newman, Mu50 (vancomycin-intermediate S. aureus), and NRS271 (linezolid-resistant S. aureus), compared with linezolid and vancomycin. In summary, both 69 and 105 have the potential to be developed as good antibacterial candidates targeting virulence factors.
我们之前的研究工作（Wang等人，《药物化学杂志》，2016年，第59卷，4831 - 4848页）表明，有效的苯并环烷衍生的金黄色葡萄球菌素抑制剂在对抗耐甲氧西林金黄色葡萄球菌（S. aureus）感染时，伴随着水溶性差、高hERG抑制作用以及高剂量（给药前）的问题。在本研究中，92种作为新型抑制剂的色满和香豆素衍生物被用于克服上述不足。衍生物69和105表现出优异的色素抑制活性和低hERG抑制作用，同时通过盐型选择提高了溶解度。与利奈唑胺和万古霉素相比，在小鼠肝脏和心脏中正常给药时，69和105首次展现出针对色素沉着的金黄色葡萄球菌纽曼菌株、Mu50（万古霉素中介金黄色葡萄球菌）和NRS271（耐利奈唑胺金黄色葡萄球菌）的广泛且显著有效的抗菌谱。总之，69和105都有潜力被开发成为针对毒力因子的优良抗菌候选药物。
