Synthesis and Structure−Activity Relationships of 2-Pyridones: A Novel Series of Potent DNA Gyrase Inhibitors as Antibacterial Agents
作者:Qun Li、Daniel T. W. Chu、Akiyo Claiborne、Curt S. Cooper、Cheuk M. Lee、Kathleen Raye、Kristine B. Berst、Pamela Donner、Weibo Wang、Lisa Hasvold、Anthony Fung、Zhenkun Ma、Michael Tufano、Robert Flamm、Linus L. Shen、John Baranowski、Angela Nilius、Jeff Alder、Jonathan Meulbroek、Kennan Marsh、DeAnne Crowell、Yuhua Hui、Louis Seif、Laura M. Melcher、Rodger Henry、Steven Spanton、Ramin Faghih、Larry L. Klein、S. Ken Tanaka、Jacob J. Plattner
DOI:10.1021/jm960207w
日期:1996.1.1
Two novel series of 2-pyridones were synthesized by transposition of the nitrogen of 4-quinolones to the bridgehead position. This subtle interchange of the nitrogen atom with a carbon atom yielded two novel heterocyclic nuclei, pyrido[1,2-alpha]pyrimidine and quinolizine, which had not previously been evaluated as antibacterial agents and were found to be potent inhibitors of DNA gyrase. Quinolizines
通过将4-喹诺酮类的氮转位至桥头位置,合成了两个新颖的2-吡啶酮系列。氮原子与碳原子的这种微妙的交换产生了两个新的杂环核,吡啶并[1,2-α]嘧啶和喹啉嗪,它们先前未被评估为抗菌剂,并且被发现是DNA促旋酶的有效抑制剂。(S)-45a(ABT-719)等在9位甲基的喹唑啉酮具有出色的广谱抗菌活性。最值得注意的是,它们对耐药菌具有活性,例如耐甲氧西林的金黄色葡萄球菌,耐万古霉素的肠球菌菌株和耐环丙沙星的生物。此外,2-吡啶酮还具有良好的理化和药代动力学特性。这些2-吡啶酮是通过10-17个线性转化从商购可得的起始原料合成的。通过X射线晶体学分析确定由该序列产生的加合物(S)-45a(ABT-719)的结构。