Membrane-permeant analogues of the putative second messenger myo-inositol 3,4,5,6-tetrakisphosphate
作者:Stefan Roemer、Christoph Stadler、Marco T. Rudolf、Bernd Jastorff、Carsten Schultz
DOI:10.1039/p19960001683
日期:——
investigations of the binding properties of D-myo-inositol 3,4,5,6- and 1,4,5,6-tetrakisphosphate [D-Ins(3,4,5,6)P4 and D-Ins(1,4,5,6)P4, respectively] to their putative target proteins, a set of analogues with modifications of the 1(3)- and/or 2-hydroxy group has been prepared. The reaction sequences started from D-3,4,5,6-tetra-O-benzyl-myo-inositol or its D-1,4,5,6-enantiomer, respectively and allowed
为的结合性质的将来的调查d -肌醇肌醇3,4,5,6-和1,4,5,6-四磷酸盐[ d -INS(3,4,5,6-)P 4和d -INS (1,4,5,6)P 4分别对它们的推定靶蛋白制备了一组具有1(3)-和/或2-羟基修饰的类似物。从开始的反应顺序d -3,4,5,6-四ö苄基肌-肌醇或它的d-1,4,5,6-对映体,并允许引入具有退化性氢键的基团,例如甲氧基或氯,取代羟基。另外,相应的DL -鲨肌醇的前体24的制备是通过使用一个共同的亚磷酸酯的方法2-肌糖衍生物23.古典保护/去保护化学和随后的磷酸化立体化学优化还原,得到四磷酸盐类似物1A-E,3。这些衍生物被转化为不带电荷的可生物活化的乙酰氧基甲基酯2a–e,4。为避免乙酰氧基甲基烷基化过程中磷酸盐环化,并增加潜在的膜渗透性Ins P 4的亲脂性 单取代的四磷酸酯的衍生物的羟基被细胞内可水解的丁酸酯覆盖。