Synthesis of N-phthalimido β-aminoethanesulfonyl chlorides: the use of thionyl chloride for a simple and efficient synthesis of new peptidosulfonamide building blocks
作者:Jan Humljan、Stanislav Gobec
DOI:10.1016/j.tetlet.2005.04.011
日期:2005.6
β-aminoethanesulfonyl chlorides, new building blocks for the synthesis of peptidosulfonamide peptidomimetics, were prepared in a straightforward manner from amino acids. In the crucial synthetic step, sulfonic acids or their sodium salts were converted into the corresponding sulfonyl chlorides using an excess of refluxing thionyl chloride or thionyl chloride/DMF. This simple and effective chlorinating
N-邻苯二甲酰亚胺基β-氨基乙烷磺酰氯是肽氨基酸磺酰胺拟肽合成的新组成部分,是直接从氨基酸中制备的。在关键的合成步骤中,使用过量的回流亚硫酰氯或亚硫酰氯/ DMF将磺酸或其钠盐转化为相应的磺酰氯。这种简单有效的氯化方法也适用于β-氨基乙烷磺酸及其钠盐与其他N保护基的结合。