Design, synthesis and antibacterial evaluation of novel 15-membered 11a-azahomoclarithromycin derivatives with the 1, 2, 3-triazole side chain
作者:Yinhui Qin、Yuetai Teng、Ruixin Ma、Fangchao Bi、Zhiyang Liu、Panpan Zhang、Shutao Ma
DOI:10.1016/j.ejmech.2019.07.022
日期:2019.10
needed. Thus, three series of novel 15-membered 11a-azahomoclarithromycin derivatives (series A-C) with the 1, 2, 3-triazole side chain were designed and synthesized through creatively opening the ring of clarithromycin (CAM), expanding the ring properly and introducing a suitable side chain of 1, 2, 3-triazole at the C12 and C13 positions, and evaluated for their antibacterial activity. The antibacterial
临床上广泛使用大环内酯类药物来治疗各种呼吸道感染。然而,由于它们的不当使用,临床分离株中大环内酯类耐药菌株的流行已成为公共卫生的关注点。因此,迫切需要新型的抗病原体大环内酯类骨架结构。因此,通过创造性地打开克拉霉素(CAM)的环,适当地扩环并引入环戊基,设计并合成了具有1,2,2,3-三唑侧链的三个系列的新型15元11a-azahomoclarithromycin衍生物(AC系列)。在C12和C13位置的1,2,3-三唑合适的侧链,并评估其抗菌活性。抗菌结果表明,化合物38b,38l和38v对金黄色葡萄球菌ATCC25923(0.25μg/ mL)和枯草芽孢杆菌ATCC9372(0.25μg/ mL)具有很强的抗菌活性。此外,发现化合物9e和38g对表达ermB和mefA基因的肺炎链球菌AB11表现出有希望的有效活性(8μg/ mL)。另外,最小杀菌浓度(MBC)的测定表明,最有希望的化合