Synthesis and structure–activity relationships of novel lincomycin derivatives. Part 2. Synthesis of 7(S)-7-deoxy-7-(4-morpholinocarbonylphenylthio)lincomycin and its 3-dimensional analysis with rRNA
作者:Yoshinari Wakiyama、Ko Kumura、Eijiro Umemura、Satomi Masaki、Kazutaka Ueda、Takashi Watanabe、Mikio Yamamoto、Yoko Hirai、Keiichi Ajito
DOI:10.1038/ja.2015.125
日期:2016.6
Lincomycin derivatives, which possess a hetero ring at the C-7 position via sulfur atom, were synthesized by three types of reactions: (1) Mitsunobu reaction of 2,3,4-tris-O-(trimethylsiliyl)lincomycin (1) with the corresponding thiol, (2) SN2 reaction of 7-O-methanesulfonyl-2,3,4-tris-O-(trimethylsiliyl)lincomycin (2) with the corresponding thiol and (3) Pd-catalyzed cross-coupling reaction of 7-
通过三种类型的反应合成了通过硫原子在C-7位具有杂环的林可霉素衍生物:(1)2,3,4-tris-O-(trimethylsiliyl)lincomycin的Mitsunobu反应(1)与相应的硫醇,(2)7-O-甲磺酰基-2,3,4-三-O-(三甲基甲硅烷基)林可霉素的SN2反应(2)与相应的硫醇和(3)Pd催化的7的交叉偶联反应-脱氧-7-epi-7-巯基林可霉素(35)与相应的芳基卤化物。结果,甚至与克林霉素相比,化合物28对主要病原体具有有效的抗菌活性,所述主要病原体引起呼吸道感染。另一方面,化合物38对具有erm基因的多种肺炎链球菌显示出最有效的活性。