申请人:——
公开号:US20040167329A1
公开(公告)日:2004-08-26
An improved method of synthesizing a macrocyclic tetraamido compound includes protecting the amino portion of an amino carboxylic acid to form a protected amino carboxylic acid; exposing the protected amino carboxylic acid to a first solvent, preferably a hydrocarbon solvent, such as toluene or 1,2-dichloroethane, dichloromethane, dibromomethane and 1,2-dibromoethane. The carboxylic acid portion of the protected amino carboxylic acid is then converted to an activated carboxylic acid by one of esterification or acid halide formation, to form a protected amino activated carboxylic acid derivative. The protected amino activated carboxylic acid derivative is reacted with a diamine in the presence of a second solvent, such as THF or ,2-dichloroethane, dichloromethane, dibromomethane and 1,2-dibromoethane, to form a protected diamide diamine intermediate. Following deprotection, the diamide diamine intermediate is reacted with an activated diacid, such as an activated malonate, oxalate or succinate derivative to form the macrocyclic tetraamido compound. The macrocyclic tetraamido compound may further be complexed with a transition metal.
一种改进的合成大环四酰胺化合物的方法,包括保护氨基羧酸的氨基部分以形成受保护的氨基羧酸;将受保护的氨基羧酸暴露于第一种溶剂中,优选为烃类溶剂,例如甲苯或1,2-二氯乙烷、二氯甲烷、二溴甲烷和1,2-二溴乙烷。然后,通过酯化或酸卤化形成将受保护的氨基羧酸转化为活化羧酸,以形成受保护的氨基活化羧酸衍生物。在第二种溶剂的存在下,例如THF或2-二氯乙烷、二氯甲烷、二溴甲烷和1,2-二溴乙烷,将受保护的氨基活化羧酸衍生物与二胺反应,以形成受保护的二酰胺二胺中间体。经去保护后,将二酰胺二胺中间体与活化二酸,例如活性丙二酸酯、草酸酯或琥珀酸酯衍生物反应,以形成大环四酰胺化合物。大环四酰胺化合物可以进一步与过渡金属络合。