(+)-(5<i>R</i>,6<i>S</i>)-2-(1′-Aminoalkyl)-6-(hydroxyalkyl)penem-3-carboxylic Acids
作者:Marc Lang、Ernst Hungerbühler、Peter Schneider、Riccardo Scartazzini、Werner Tosch、Edward A. Konopka、Oto Zak
DOI:10.1002/hlca.19860690709
日期:1986.10.29
In continuation of our work on penem antibiotics, novel chiral (5R,6S)-2-(1′-aminoalkyl)-6-(hydroxyalkyl)-derivatives 1 have been synthesized by two essentially different strategies. Whereas the starting materials for 1a-f, azetidinones 2 and 5, were obtained from chiral building blocks (6-aminopenicillanic acid and L-threonine, resp.), the one for 1g, azetidinone 9, was derived from racemic 4-acetoxyazetidinone
在我们的青霉烯抗生素,新型手性(5工作的延续- [R,6小号)-2-(1'-氨基烷基)-6-(羟烷基) -衍生物1已经由两个基本上不同的策略合成。1a - f的起始原料氮杂环丁酮2和5是从手性结构单元(6-氨基青霉酸和L-苏氨酸,分别)中获得的,而1g的起始原料氮杂环丁酮9则是由外消旋的4-乙酰氧基氮杂环丁酮和作为手性助剂,(2 R)-2-巯基丙烷-1-醇。2-氨基甲基衍生物1a(CGP 30779)和1fCGP 31 608(CGP 31 608)在体外抗菌试验中被证明是最有效的化合物,并且与已建立的β-内酰胺相比,具有良好平衡的活性谱。