作者:Marc Antoniu Ilies、William A. Seitz、Miron T. Caproiu、Melissa Wentz、Robert E. Garfield、Alexandru T. Balaban
DOI:10.1002/ejoc.200300106
日期:2003.7
previously described because we synthesize a pyridinium ring from simple starting materials. First a pyrylium salt is formed via diacylation of alkenes. The pyrylium salt is then converted by primary amines into pyridinium salts. Appropriate choice of the primary amine allows the attachment of two hydrophobic chains yielding compounds 21A and 25A (with various chain lengths derived from palmitic, stearic
阳离子脂质是用于基因治疗的病毒载体的有前途的替代品,尽管它们的转染效率较低,但允许在没有免疫原性的情况下递送更大的质粒。其中,带有咪唑鎓或吡啶鎓极性头基的杂环体系具有明显的优势,例如优良的转染特性和低细胞毒性。我们合成杂环阳离子脂质的方法与之前描述的方法不同,因为我们从简单的起始材料合成了一个吡啶环。首先通过烯烃的二酰基化形成吡喃盐。然后吡啶鎓盐通过伯胺转化为吡啶鎓盐。Appropriate choice of the primary amine allows the attachment of two hydrophobic chains yielding compounds 21A and 25A (with various chain lengths derived from palmitic, 硬脂酸和油酸)。相同的策略允许制备亲脂性衍生物 21B、25B,用作研究生物膜特性的强荧光标记。用一些化合物