Synthesis based on affinity separation (SAS): separation of products having barbituric acid tag from untagged compounds by using hydrogen bond interaction
Abstract: A new method is described for affinity purification of synthetic compounds based on molecular recognition between bis (2, 6-diaminopyridine) amide of isophthalic acid and a barbituric acid derivative. The desired compounds possessing the barbituric acid derivative as a tag were readily isolated from the reaction mixture by the following procedure. After each reaction cycle, the reaction mixture was applied to the polystyrene column ...