Primaquine dipeptide derivatives bearing an imidazolidin-4-one moiety at the N-terminus as potential antimalarial prodrugs
作者:Nuno Vale、Fátima Nogueira、Virgílio E. do Rosário、Paula Gomes、Rui Moreira
DOI:10.1016/j.ejmech.2009.01.018
日期:2009.6
Primaquine dipeptide derivatives bearing an imidazolidin-4-one moiety at the N-terminus were synthesized and evaluated as potential transmission-blocking antimalarial prodrugs. All compounds were hydrolyzed to the parent dipeptide derivative of primaquine in neutral and basic solutions, with half lives ranging from 0.7 to 31 h at 37 °C, depending on the nature of the substituents present in the imidazolidin-4-one
合成了在N-末端带有咪唑烷基-4-酮部分的伯氨喹二肽衍生物,并将其评估为潜在的阻断传导的抗疟原药。所有化合物均在中性和碱性溶液中水解为伯氨喹的母体二肽衍生物,其半衰期在37°C下为0.7至31 h,具体取决于咪唑烷酮-4-one部分和烷基中存在的取代基的性质。 C端氨基酸直接偶联至伯氨喹。使用由伯氏疟原虫,BalbC小鼠和按蚊按蚊组成的模型研究了所选化合物的抗疟活性蚊子。由丙氨酸-丙氨酸伯氨喹和丙酮衍生的咪唑啉丁-4-酮比伯氨喹更有效地减少了感染向蚊子的传播,这表现为蚊子中肠中的卵囊数量显着减少,分别为10和50μmol/与对照相比,kg。