Synthesis and structure–activity relationships of novel lincomycin derivatives part 3: discovery of the 4-(pyrimidin-5-yl)phenyl group in synthesis of 7(S)-thiolincomycin analogs
作者:Yoshinari Wakiyama、Ko Kumura、Eijiro Umemura、Satomi Masaki、Kazutaka Ueda、Yasuo Sato、Takashi Watanabe、Yoko Hirai、Keiichi Ajito
DOI:10.1038/ja.2016.114
日期:2017.1
these novel lincomycin derivatives, we found that (a) the location of basicity in the C-7 side chain was an important factor to enhance antibacterial activities, and (b) compounds 22, 36, 42, 43 and 44 had potent antibacterial activities against a variety of Streptococcus pneumoniae with erm gene, which cause severe respiratory infections, even compared with our C-7-modified lincomycin analogs (1-4)
通过7(S)-7-脱氧-7-硫代林可霉素(5)与Pd催化的交叉偶联反应合成了新的林可霉素衍生物,其通过硫原子在C-7位置具有一个芳基苯基或一个杂芳基苯基。芳基卤化物。该反应是合成多种7(S)-7-脱氧-7-硫代林可霉素衍生物的最有用的方法。在对这些新型林可霉素衍生物的构效关系进行分析的基础上,我们发现(a)碱在C-7侧链中的位置是增强抗菌活性的重要因素,并且(b)化合物22、36 ,42、43和44与先前报道的C-7修饰的林可霉素类似物(1-4)相比,对具有erm基因的多种肺炎链球菌均具有有效的抗菌活性,这些细菌可引起严重的呼吸道感染。此外,