Syntheses and antibacterial activity of soluble 9-bromo substituted indolizinoquinoline-5,12-dione derivatives
作者:Hui Yang、Hao-Wen Wang、Teng-Wei Zhu、Le-Mao Yu、Jian-Wen Chen、Lu-Xia Wang、Lei Shi、Ding Li、Lian-Quan Gu、Zhi-Shu Huang、Lin-Kun An
DOI:10.1016/j.ejmech.2016.12.054
日期:2017.2
low bioavailability in vivo possibly due to its low solubility in water. In order to obtain the derivatives with higher anti-MRSA activity and good water solubility, twenty eight bromo-substituted indolizinoquinoline-5,12-dione derivatives were synthesized in the present study. The antibacterial activity of the synthesized compounds was evaluated against one gram-negative and some gram-positive bacterial
在我们之前的研究中,发现9-溴吲哚并喹啉-5,12-二酮1是一种良好的抗MRSA药物。然而,由于其在水中的低溶解度,它在体内的生物利用度非常低。为了获得具有较高的抗MRSA活性和良好的水溶性的衍生物,本研究合成了28个溴取代的吲哚并喹啉-5,12-二酮衍生物。评估了合成化合物对一种革兰氏阴性和某些革兰氏阳性细菌菌株(包括100株临床MRSA菌株)的抗菌活性。的UV测定法进行,以确定六个活性化合物的溶解度16,21,23和27-29。最有效的化合物28表现出对临床MRSA菌株的强活性,MIC 50和MIC 90值均低于7.8 ng / mL。化合物27具有1.98 mg / mL的良好水溶性,并且对临床MRSA菌株具有很强的活性,MIC 50值为63 ng / mL,MIC 90值为125 ng / mL,比万古霉素高16倍。