Synthesis of desferrioxamine B and analogs and homologs thereof beginning with O-protected, N-protected hydroxylamine, which is N-alkylated to produce a protected N-4-cyanoalkylhydroxylamine which is acylated with a suitable anhydride. The resulting half-acid amide is subjected to a series of high yield condensations and reductions which provide desferrioxamine B in high overall yield. Alternatively, polyether analogs of desferrioxamine B can be prepared by reacting an activated polyether with the O-protected, N-protected hydroxylamine and subjecting the resulting product to a series of similar steps.
利用O-保护的、N-保护的
羟胺开始合成
去铁胺B及其类似物和同系物,该
羟胺被N-烷基化以产生一个保护的N-4-
氰基烷基
羟胺,然后与合适的酐酸化。所得到的半酸酰胺经过一系列高产率的缩合和还原反应,可高产率地提供
去铁胺B。或者,可以通过将活化的聚醚与O-保护的、N-保护的
羟胺反应,并将所得产物经过一系列类似的步骤,制备
去铁胺B的聚
醚类似物。